Obesity

Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.

This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.

The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.

Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
 

GLP-1 agonists as complication-reducing agents

Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.

Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.

Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.

Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.

He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.

“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
 

Combined analysis of STEP 1 and STEP 4 data

The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.

A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.

Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.

“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.

In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.

The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.

Blood glucose changes confer the biggest effect

The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.

“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.

Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.

Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).  

Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.

The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.

The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.

A version of this article first appeared on Medscape.com.

Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.

This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.

The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.

Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
 

GLP-1 agonists as complication-reducing agents

Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.

Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.

Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.

Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.

He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.

“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
 

Combined analysis of STEP 1 and STEP 4 data

The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.

A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.

Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.

“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.

In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.

The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.

Blood glucose changes confer the biggest effect

The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.

“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.

Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.

Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).  

Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.

The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.

The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.

A version of this article first appeared on Medscape.com.

Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.

This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.

The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.

Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
 

GLP-1 agonists as complication-reducing agents

Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.

Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.

Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.

Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.

He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.

“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
 

Combined analysis of STEP 1 and STEP 4 data

The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.

A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.

Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.

“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.

In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.

The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.

Blood glucose changes confer the biggest effect

The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.

“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.

Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.

Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).  

Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.

The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.

The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.

A version of this article first appeared on Medscape.com.

California and New York are on the cusp of going further than the Food and Drug Administration in restricting the sale of nonprescription diet pills to minors as pediatricians and public health advocates try to protect kids from extreme weight-loss gimmicks online.

A bill before Gov. Gavin Newsom would bar anyone under 18 in California from buying over-the-counter weight-loss supplements – whether online or in shops – without a prescription. A similar bill passed by New York lawmakers is on Gov. Kathy Hochul’s desk. Neither Democrat has indicated how he or she will act.

kaarsten/Thinkstock

If both bills are signed into law, proponents hope the momentum will build to restrict diet pill sales to children in more states. Massachusetts, New Jersey, and Missouri have introduced similar bills and backers plan to continue their push next year.

Nearly 30 million people in the United States will have an eating disorder in their lifetime; 95% of them are aged between 12 and 25, according to Johns Hopkins All Children’s Hospital. The hospital added that eating disorders pose the highest risk of mortality of any mental health disorder. And it has become easier than ever for minors to get pills that are sold online or on drugstore shelves. All dietary supplements, which include those for weight loss, accounted for nearly 35% of the $63 billion over-the-counter health products industry in 2021, according to Vision Research Reports, a market research firm.

Dietary supplements, which encompass a broad range of vitamins, herbs, and minerals, are classified by the FDA as food and don’t undergo scientific and safety testing as prescription drugs and over-the-counter medicines do.

Public health advocates want to keep weight-loss products – with ads that may promise to “Drop 5 pounds a week!” and pill names like Slim Sense – away from young people, particularly girls, since some research has linked some products to eating disorders. A study in the American Journal of Public Health, which followed more than 10,000 women aged 14-36 over 15 years, found that “those who used diet pills had more than 5 times higher adjusted odds of receiving an eating disorder diagnosis from a health care provider within 1-3 years than those who did not.”

Many pills have been found tainted with banned and dangerous ingredients that may cause cancer, heart attacks, strokes, and other ailments. For example, the FDA advised the public to avoid Slim Sense by Dr. Reade because it contains lorcaserin, which has been found to cause psychiatric disturbances and impairments in attention or memory. The FDA ordered it discontinued and the company couldn’t be reached for comment.

“Unscrupulous manufacturers are willing to take risks with consumers’ health – and they are lacing their products with illegal pharmaceuticals, banned pharmaceuticals, steroids, excessive stimulants, even experimental stimulants,” said S. Bryn Austin, ScD, founding director of the Strategic Training Initiative for the Prevention of Eating Disorders, or STRIPED, which supports the restrictions. “Consumers have no idea that this is what’s in these types of products.”

STRIPED is a public health initiative based at the Harvard School of Public Health, Boston, and Boston Children’s Hospital.

An industry trade group, the Natural Products Association, disputes that diet pills cause eating disorders, citing the lack of consumer complaints to the FDA of adverse events from their members’ products. “According to FDA data, there is no association between the two,” said Kyle Turk, the association’s director of government affairs.

The association contends that its members adhere to safe manufacturing processes, random product testing, and appropriate marketing guidelines. Representatives also worry that if minors can’t buy supplements over the counter, they may buy them from “crooks” on the black market and undermine the integrity of the industry. Under the bills, minors purchasing weight-loss products must show identification along with a prescription.

Not all business groups oppose the ban. The American Herbal Products Association, a trade group representing dietary supplement manufacturers and retailers, dropped its opposition to California’s bill once it was amended to remove ingredient categories that are found in non-diet supplements and vitamins, according to Robert Marriott, director of regulatory affairs.

Children’s advocates have found worrisome trends among young people who envision their ideal body type based on what they see on social media. According to a study commissioned by Fairplay, a nonprofit that seeks to stop harmful marketing practices targeting children, kids as young as 9 were found to be following three or more eating disorder accounts on Instagram, while the median age was 19. The authors called it a “pro–eating disorder bubble.”

Meta, which owns Instagram and Facebook, said the report lacks nuance, such as recognizing the human need to share life’s difficult moments. The company argues that blanket censorship isn’t the answer. “Experts and safety organizations have told us it’s important to strike a balance and allow people to share their personal stories while removing any content that encourages or promotes eating disorders,” Liza Crenshaw, a Meta spokesperson, said in an email.

Jason Nagata, MD, a pediatrician who cares for children and young adults with life-threatening eating disorders, believes that easy access to diet pills contributes to his patients’ conditions at UCSF Benioff Children’s Hospital in San Francisco. That was the case for one of his patients, an emaciated 11-year-old girl.

“She had basically entered a starvation state because she was not getting enough nutrition,” said Dr. Nagata, who provided supporting testimony for the California bill. “She was taking these pills and using other kinds of extreme behaviors to lose weight.”

Dr. Nagata said the number of patients he sees with eating disorders has tripled since the pandemic began. They are desperate to get diet pills, some with modest results. “We’ve had patients who have been so dependent on these products that they will be hospitalized and they’re still ordering these products on Amazon,” he said.

Public health advocates turned to state legislatures in response to the federal government’s limited authority to regulate diet pills. Under a 1994 federal law known as the Dietary Supplement Health and Education Act, the FDA “cannot step in until after there is a clear issue of harm to consumers,” said Dr. Austin.

No match for the supplement industry’s heavy lobbying on Capitol Hill, public health advocates shifted to a state-by-state approach.

There is, however, a push for the FDA to improve oversight of what goes into diet pills. Sen. Dick Durbin (D-Ill.) in April introduced a bill that would require dietary supplement manufacturers to register their products – along with the ingredients – with the regulator.

Proponents say the change is needed because manufacturers have been known to include dangerous ingredients. C. Michael White, PharmD, of the University of Connecticut, Storrs, found 35% of tainted health products came from weight-loss supplements in a review of a health fraud database.

A few ingredients have been banned, including sibutramine, a stimulant. “It was a very commonly used weight-loss supplement that ended up being removed from the U.S. market because of its elevated risk of causing things like heart attacks, strokes, and arrhythmias,” Dr. White said.

Another ingredient was phenolphthalein, which was used in laxatives until it was identified as a suspected carcinogen and banned in 1999. “To think,” he said, “that that product would still be on the U.S. market is just unconscionable.”

This story was produced by KHN, which publishes California Healthline, an editorially independent service of the California Health Care Foundation. KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

California and New York are on the cusp of going further than the Food and Drug Administration in restricting the sale of nonprescription diet pills to minors as pediatricians and public health advocates try to protect kids from extreme weight-loss gimmicks online.

A bill before Gov. Gavin Newsom would bar anyone under 18 in California from buying over-the-counter weight-loss supplements – whether online or in shops – without a prescription. A similar bill passed by New York lawmakers is on Gov. Kathy Hochul’s desk. Neither Democrat has indicated how he or she will act.

kaarsten/Thinkstock

If both bills are signed into law, proponents hope the momentum will build to restrict diet pill sales to children in more states. Massachusetts, New Jersey, and Missouri have introduced similar bills and backers plan to continue their push next year.

Nearly 30 million people in the United States will have an eating disorder in their lifetime; 95% of them are aged between 12 and 25, according to Johns Hopkins All Children’s Hospital. The hospital added that eating disorders pose the highest risk of mortality of any mental health disorder. And it has become easier than ever for minors to get pills that are sold online or on drugstore shelves. All dietary supplements, which include those for weight loss, accounted for nearly 35% of the $63 billion over-the-counter health products industry in 2021, according to Vision Research Reports, a market research firm.

Dietary supplements, which encompass a broad range of vitamins, herbs, and minerals, are classified by the FDA as food and don’t undergo scientific and safety testing as prescription drugs and over-the-counter medicines do.

Public health advocates want to keep weight-loss products – with ads that may promise to “Drop 5 pounds a week!” and pill names like Slim Sense – away from young people, particularly girls, since some research has linked some products to eating disorders. A study in the American Journal of Public Health, which followed more than 10,000 women aged 14-36 over 15 years, found that “those who used diet pills had more than 5 times higher adjusted odds of receiving an eating disorder diagnosis from a health care provider within 1-3 years than those who did not.”

Many pills have been found tainted with banned and dangerous ingredients that may cause cancer, heart attacks, strokes, and other ailments. For example, the FDA advised the public to avoid Slim Sense by Dr. Reade because it contains lorcaserin, which has been found to cause psychiatric disturbances and impairments in attention or memory. The FDA ordered it discontinued and the company couldn’t be reached for comment.

“Unscrupulous manufacturers are willing to take risks with consumers’ health – and they are lacing their products with illegal pharmaceuticals, banned pharmaceuticals, steroids, excessive stimulants, even experimental stimulants,” said S. Bryn Austin, ScD, founding director of the Strategic Training Initiative for the Prevention of Eating Disorders, or STRIPED, which supports the restrictions. “Consumers have no idea that this is what’s in these types of products.”

STRIPED is a public health initiative based at the Harvard School of Public Health, Boston, and Boston Children’s Hospital.

An industry trade group, the Natural Products Association, disputes that diet pills cause eating disorders, citing the lack of consumer complaints to the FDA of adverse events from their members’ products. “According to FDA data, there is no association between the two,” said Kyle Turk, the association’s director of government affairs.

The association contends that its members adhere to safe manufacturing processes, random product testing, and appropriate marketing guidelines. Representatives also worry that if minors can’t buy supplements over the counter, they may buy them from “crooks” on the black market and undermine the integrity of the industry. Under the bills, minors purchasing weight-loss products must show identification along with a prescription.

Not all business groups oppose the ban. The American Herbal Products Association, a trade group representing dietary supplement manufacturers and retailers, dropped its opposition to California’s bill once it was amended to remove ingredient categories that are found in non-diet supplements and vitamins, according to Robert Marriott, director of regulatory affairs.

Children’s advocates have found worrisome trends among young people who envision their ideal body type based on what they see on social media. According to a study commissioned by Fairplay, a nonprofit that seeks to stop harmful marketing practices targeting children, kids as young as 9 were found to be following three or more eating disorder accounts on Instagram, while the median age was 19. The authors called it a “pro–eating disorder bubble.”

Meta, which owns Instagram and Facebook, said the report lacks nuance, such as recognizing the human need to share life’s difficult moments. The company argues that blanket censorship isn’t the answer. “Experts and safety organizations have told us it’s important to strike a balance and allow people to share their personal stories while removing any content that encourages or promotes eating disorders,” Liza Crenshaw, a Meta spokesperson, said in an email.

Jason Nagata, MD, a pediatrician who cares for children and young adults with life-threatening eating disorders, believes that easy access to diet pills contributes to his patients’ conditions at UCSF Benioff Children’s Hospital in San Francisco. That was the case for one of his patients, an emaciated 11-year-old girl.

“She had basically entered a starvation state because she was not getting enough nutrition,” said Dr. Nagata, who provided supporting testimony for the California bill. “She was taking these pills and using other kinds of extreme behaviors to lose weight.”

Dr. Nagata said the number of patients he sees with eating disorders has tripled since the pandemic began. They are desperate to get diet pills, some with modest results. “We’ve had patients who have been so dependent on these products that they will be hospitalized and they’re still ordering these products on Amazon,” he said.

Public health advocates turned to state legislatures in response to the federal government’s limited authority to regulate diet pills. Under a 1994 federal law known as the Dietary Supplement Health and Education Act, the FDA “cannot step in until after there is a clear issue of harm to consumers,” said Dr. Austin.

No match for the supplement industry’s heavy lobbying on Capitol Hill, public health advocates shifted to a state-by-state approach.

There is, however, a push for the FDA to improve oversight of what goes into diet pills. Sen. Dick Durbin (D-Ill.) in April introduced a bill that would require dietary supplement manufacturers to register their products – along with the ingredients – with the regulator.

Proponents say the change is needed because manufacturers have been known to include dangerous ingredients. C. Michael White, PharmD, of the University of Connecticut, Storrs, found 35% of tainted health products came from weight-loss supplements in a review of a health fraud database.

A few ingredients have been banned, including sibutramine, a stimulant. “It was a very commonly used weight-loss supplement that ended up being removed from the U.S. market because of its elevated risk of causing things like heart attacks, strokes, and arrhythmias,” Dr. White said.

Another ingredient was phenolphthalein, which was used in laxatives until it was identified as a suspected carcinogen and banned in 1999. “To think,” he said, “that that product would still be on the U.S. market is just unconscionable.”

This story was produced by KHN, which publishes California Healthline, an editorially independent service of the California Health Care Foundation. KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

California and New York are on the cusp of going further than the Food and Drug Administration in restricting the sale of nonprescription diet pills to minors as pediatricians and public health advocates try to protect kids from extreme weight-loss gimmicks online.

A bill before Gov. Gavin Newsom would bar anyone under 18 in California from buying over-the-counter weight-loss supplements – whether online or in shops – without a prescription. A similar bill passed by New York lawmakers is on Gov. Kathy Hochul’s desk. Neither Democrat has indicated how he or she will act.

kaarsten/Thinkstock

If both bills are signed into law, proponents hope the momentum will build to restrict diet pill sales to children in more states. Massachusetts, New Jersey, and Missouri have introduced similar bills and backers plan to continue their push next year.

Nearly 30 million people in the United States will have an eating disorder in their lifetime; 95% of them are aged between 12 and 25, according to Johns Hopkins All Children’s Hospital. The hospital added that eating disorders pose the highest risk of mortality of any mental health disorder. And it has become easier than ever for minors to get pills that are sold online or on drugstore shelves. All dietary supplements, which include those for weight loss, accounted for nearly 35% of the $63 billion over-the-counter health products industry in 2021, according to Vision Research Reports, a market research firm.

Dietary supplements, which encompass a broad range of vitamins, herbs, and minerals, are classified by the FDA as food and don’t undergo scientific and safety testing as prescription drugs and over-the-counter medicines do.

Public health advocates want to keep weight-loss products – with ads that may promise to “Drop 5 pounds a week!” and pill names like Slim Sense – away from young people, particularly girls, since some research has linked some products to eating disorders. A study in the American Journal of Public Health, which followed more than 10,000 women aged 14-36 over 15 years, found that “those who used diet pills had more than 5 times higher adjusted odds of receiving an eating disorder diagnosis from a health care provider within 1-3 years than those who did not.”

Many pills have been found tainted with banned and dangerous ingredients that may cause cancer, heart attacks, strokes, and other ailments. For example, the FDA advised the public to avoid Slim Sense by Dr. Reade because it contains lorcaserin, which has been found to cause psychiatric disturbances and impairments in attention or memory. The FDA ordered it discontinued and the company couldn’t be reached for comment.

“Unscrupulous manufacturers are willing to take risks with consumers’ health – and they are lacing their products with illegal pharmaceuticals, banned pharmaceuticals, steroids, excessive stimulants, even experimental stimulants,” said S. Bryn Austin, ScD, founding director of the Strategic Training Initiative for the Prevention of Eating Disorders, or STRIPED, which supports the restrictions. “Consumers have no idea that this is what’s in these types of products.”

STRIPED is a public health initiative based at the Harvard School of Public Health, Boston, and Boston Children’s Hospital.

An industry trade group, the Natural Products Association, disputes that diet pills cause eating disorders, citing the lack of consumer complaints to the FDA of adverse events from their members’ products. “According to FDA data, there is no association between the two,” said Kyle Turk, the association’s director of government affairs.

The association contends that its members adhere to safe manufacturing processes, random product testing, and appropriate marketing guidelines. Representatives also worry that if minors can’t buy supplements over the counter, they may buy them from “crooks” on the black market and undermine the integrity of the industry. Under the bills, minors purchasing weight-loss products must show identification along with a prescription.

Not all business groups oppose the ban. The American Herbal Products Association, a trade group representing dietary supplement manufacturers and retailers, dropped its opposition to California’s bill once it was amended to remove ingredient categories that are found in non-diet supplements and vitamins, according to Robert Marriott, director of regulatory affairs.

Children’s advocates have found worrisome trends among young people who envision their ideal body type based on what they see on social media. According to a study commissioned by Fairplay, a nonprofit that seeks to stop harmful marketing practices targeting children, kids as young as 9 were found to be following three or more eating disorder accounts on Instagram, while the median age was 19. The authors called it a “pro–eating disorder bubble.”

Meta, which owns Instagram and Facebook, said the report lacks nuance, such as recognizing the human need to share life’s difficult moments. The company argues that blanket censorship isn’t the answer. “Experts and safety organizations have told us it’s important to strike a balance and allow people to share their personal stories while removing any content that encourages or promotes eating disorders,” Liza Crenshaw, a Meta spokesperson, said in an email.

Jason Nagata, MD, a pediatrician who cares for children and young adults with life-threatening eating disorders, believes that easy access to diet pills contributes to his patients’ conditions at UCSF Benioff Children’s Hospital in San Francisco. That was the case for one of his patients, an emaciated 11-year-old girl.

“She had basically entered a starvation state because she was not getting enough nutrition,” said Dr. Nagata, who provided supporting testimony for the California bill. “She was taking these pills and using other kinds of extreme behaviors to lose weight.”

Dr. Nagata said the number of patients he sees with eating disorders has tripled since the pandemic began. They are desperate to get diet pills, some with modest results. “We’ve had patients who have been so dependent on these products that they will be hospitalized and they’re still ordering these products on Amazon,” he said.

Public health advocates turned to state legislatures in response to the federal government’s limited authority to regulate diet pills. Under a 1994 federal law known as the Dietary Supplement Health and Education Act, the FDA “cannot step in until after there is a clear issue of harm to consumers,” said Dr. Austin.

No match for the supplement industry’s heavy lobbying on Capitol Hill, public health advocates shifted to a state-by-state approach.

There is, however, a push for the FDA to improve oversight of what goes into diet pills. Sen. Dick Durbin (D-Ill.) in April introduced a bill that would require dietary supplement manufacturers to register their products – along with the ingredients – with the regulator.

Proponents say the change is needed because manufacturers have been known to include dangerous ingredients. C. Michael White, PharmD, of the University of Connecticut, Storrs, found 35% of tainted health products came from weight-loss supplements in a review of a health fraud database.

A few ingredients have been banned, including sibutramine, a stimulant. “It was a very commonly used weight-loss supplement that ended up being removed from the U.S. market because of its elevated risk of causing things like heart attacks, strokes, and arrhythmias,” Dr. White said.

Another ingredient was phenolphthalein, which was used in laxatives until it was identified as a suspected carcinogen and banned in 1999. “To think,” he said, “that that product would still be on the U.S. market is just unconscionable.”

This story was produced by KHN, which publishes California Healthline, an editorially independent service of the California Health Care Foundation. KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

Lots of things can disrupt your gut health over the years. A high-sugar diet, stress, antibiotics – all are linked to bad changes in the gut microbiome, the microbes that live in your intestinal tract. And this can raise the risk of diseases.

But what if you could erase all that damage, restoring your gut to a time when you were younger and healthier?

It could be possible, scientists say, by having people take a sample of their own stool when they are young to be put back into their colons when they are older.

While the science to back this up isn’t quite there yet, some researchers are saying we shouldn’t wait. They are calling on existing stool banks to let people start banking their stool now, so it’s there for them to use if the science becomes available.

But how would that work?

First, you’d go to a stool bank and provide a fresh sample of your poop, which would be screened for diseases, washed, processed, and deposited into a long-term storage facility.

Then, down the road, if you get a condition such as inflammatory bowel disease, heart disease, or type 2 diabetes – or if you have a procedure that wipes out your microbiome, like a course of antibiotics or chemotherapy – doctors could use your preserved stool to “re-colonize” your gut, restoring it to its earlier, healthier state, said Scott Weiss, MD, professor of medicine at Harvard Medical School, Boston, and a coauthor of a recent paper on the topic. They would do that using fecal microbiota transplantation, or FMT.

Timing is everything. You’d want a sample from when you’re healthy – say, between the ages of 18 and 35, or before a chronic condition is likely, said Dr. Weiss. But if you’re still healthy into your late 30s, 40s, or even 50s, providing a sample then could still benefit you later in life.

If we could pull off a banking system like this, it could have the potential to treat autoimmune disease, inflammatory bowel disease, diabetes, obesity, and heart disease – or even reverse the effects of aging. How can we make this happen?
 

Stool banks of today

While stool banks do exist today, the samples inside are destined not for the original donors but rather for sick patients hoping to treat an illness. Using FMT, doctors transfer the fecal material to the patient’s colon, restoring helpful gut microbiota.

Some research shows FMT may help treat inflammatory bowel diseases, such as Crohn’s or ulcerative colitis. Animal studies suggest it could help treat obesity, lengthen lifespan, and reverse some effects of aging, such as age-related decline in brain function. Other clinical trials are looking into its potential as a cancer treatment, said Dr. Weiss.

But outside the lab, FMT is mainly used for one purpose: to treat Clostridioides difficile infection. It works even better than antibiotics, research shows.

But first you need to find a healthy donor, and that’s harder than you might think.
 

Finding healthy stool samples

Banking our bodily substances is nothing new. Blood banks, for example, are common throughout the United States, and cord blood banking – preserving blood from a baby’s umbilical cord to aid possible future medical needs of the child – is becoming more popular. Sperm donors are highly sought after, and doctors regularly transplant kidneys and bone marrow to patients in need.

So why are we so particular about poop?

Part of the reason may be because feces (like blood, for that matter) can harbor disease – which is why it’s so important to find healthy stool donors. Problem is, this can be surprisingly hard to do.

To donate fecal matter, people must go through a rigorous screening process, said Majdi Osman, MD, chief medical officer for OpenBiome, a nonprofit microbiome research organization.

Until recently, OpenBiome operated a stool donation program, though it has since shifted its focus to research. Potential donors were screened for diseases and mental health conditions, pathogens, and antibiotic resistance. The pass rate was less than 3%.

“We take a very cautious approach because the association between diseases and the microbiome is still being understood,” Dr. Osman said.

FMT also carries risks – though so far, they seem mild. Side effects include mild diarrhea, nausea, belly pain, and fatigue. (The reason? Even the healthiest donor stool may not mix perfectly with your own.)

That’s where the idea of using your own stool comes in, said Yang-Yu Liu, PhD, a Harvard researcher who studies the microbiome and the lead author of the paper mentioned above. It’s not just more appealing but may also be a better “match” for your body.
 

Should you bank your stool?

While the researchers say we have reason to be optimistic about the future, it’s important to remember that many challenges remain. FMT is early in development, and there’s a lot about the microbiome we still don’t know.

There’s no guarantee, for example, that restoring a person’s microbiome to its formerly disease-free state will keep diseases at bay forever, said Dr. Weiss. If your genes raise your odds of having Crohn’s, for instance, it’s possible the disease could come back.

We also don’t know how long stool samples can be preserved, said Dr. Liu. Stool banks currently store fecal matter for 1 or 2 years, not decades. To protect the proteins and DNA structures for that long, samples would likely need to be stashed at the liquid nitrogen storage temperature of –196° C. (Currently, samples are stored at about –80° C.) Even then, testing would be needed to confirm if the fragile microorganisms in the stool can survive.

This raises another question: Who’s going to regulate all this?

The FDA regulates the use of FMT as a drug for the treatment of C. diff, but as Dr. Liu pointed out, many gastroenterologists consider the gut microbiota an organ. In that case, human fecal matter could be regulated the same way blood, bone, or even egg cells are.

Cord blood banking may be a helpful model, Dr. Liu said.

“We don’t have to start from scratch.”

Then there’s the question of cost. Cord blood banks could be a point of reference for that too, the researchers say. They charge about $1,500 to $2,820 for the first collection and processing, plus a yearly storage fee of $185 to $370.

Despite the unknowns, one thing is for sure: The interest in fecal banking is real – and growing. At least one microbiome firm, Cordlife Group Limited, based in Singapore, announced that it has started to allow people to bank their stool for future use.

“More people should talk about it and think about it,” said Dr. Liu.

A version of this article first appeared on WebMD.com.

Lots of things can disrupt your gut health over the years. A high-sugar diet, stress, antibiotics – all are linked to bad changes in the gut microbiome, the microbes that live in your intestinal tract. And this can raise the risk of diseases.

But what if you could erase all that damage, restoring your gut to a time when you were younger and healthier?

It could be possible, scientists say, by having people take a sample of their own stool when they are young to be put back into their colons when they are older.

While the science to back this up isn’t quite there yet, some researchers are saying we shouldn’t wait. They are calling on existing stool banks to let people start banking their stool now, so it’s there for them to use if the science becomes available.

But how would that work?

First, you’d go to a stool bank and provide a fresh sample of your poop, which would be screened for diseases, washed, processed, and deposited into a long-term storage facility.

Then, down the road, if you get a condition such as inflammatory bowel disease, heart disease, or type 2 diabetes – or if you have a procedure that wipes out your microbiome, like a course of antibiotics or chemotherapy – doctors could use your preserved stool to “re-colonize” your gut, restoring it to its earlier, healthier state, said Scott Weiss, MD, professor of medicine at Harvard Medical School, Boston, and a coauthor of a recent paper on the topic. They would do that using fecal microbiota transplantation, or FMT.

Timing is everything. You’d want a sample from when you’re healthy – say, between the ages of 18 and 35, or before a chronic condition is likely, said Dr. Weiss. But if you’re still healthy into your late 30s, 40s, or even 50s, providing a sample then could still benefit you later in life.

If we could pull off a banking system like this, it could have the potential to treat autoimmune disease, inflammatory bowel disease, diabetes, obesity, and heart disease – or even reverse the effects of aging. How can we make this happen?
 

Stool banks of today

While stool banks do exist today, the samples inside are destined not for the original donors but rather for sick patients hoping to treat an illness. Using FMT, doctors transfer the fecal material to the patient’s colon, restoring helpful gut microbiota.

Some research shows FMT may help treat inflammatory bowel diseases, such as Crohn’s or ulcerative colitis. Animal studies suggest it could help treat obesity, lengthen lifespan, and reverse some effects of aging, such as age-related decline in brain function. Other clinical trials are looking into its potential as a cancer treatment, said Dr. Weiss.

But outside the lab, FMT is mainly used for one purpose: to treat Clostridioides difficile infection. It works even better than antibiotics, research shows.

But first you need to find a healthy donor, and that’s harder than you might think.
 

Finding healthy stool samples

Banking our bodily substances is nothing new. Blood banks, for example, are common throughout the United States, and cord blood banking – preserving blood from a baby’s umbilical cord to aid possible future medical needs of the child – is becoming more popular. Sperm donors are highly sought after, and doctors regularly transplant kidneys and bone marrow to patients in need.

So why are we so particular about poop?

Part of the reason may be because feces (like blood, for that matter) can harbor disease – which is why it’s so important to find healthy stool donors. Problem is, this can be surprisingly hard to do.

To donate fecal matter, people must go through a rigorous screening process, said Majdi Osman, MD, chief medical officer for OpenBiome, a nonprofit microbiome research organization.

Until recently, OpenBiome operated a stool donation program, though it has since shifted its focus to research. Potential donors were screened for diseases and mental health conditions, pathogens, and antibiotic resistance. The pass rate was less than 3%.

“We take a very cautious approach because the association between diseases and the microbiome is still being understood,” Dr. Osman said.

FMT also carries risks – though so far, they seem mild. Side effects include mild diarrhea, nausea, belly pain, and fatigue. (The reason? Even the healthiest donor stool may not mix perfectly with your own.)

That’s where the idea of using your own stool comes in, said Yang-Yu Liu, PhD, a Harvard researcher who studies the microbiome and the lead author of the paper mentioned above. It’s not just more appealing but may also be a better “match” for your body.
 

Should you bank your stool?

While the researchers say we have reason to be optimistic about the future, it’s important to remember that many challenges remain. FMT is early in development, and there’s a lot about the microbiome we still don’t know.

There’s no guarantee, for example, that restoring a person’s microbiome to its formerly disease-free state will keep diseases at bay forever, said Dr. Weiss. If your genes raise your odds of having Crohn’s, for instance, it’s possible the disease could come back.

We also don’t know how long stool samples can be preserved, said Dr. Liu. Stool banks currently store fecal matter for 1 or 2 years, not decades. To protect the proteins and DNA structures for that long, samples would likely need to be stashed at the liquid nitrogen storage temperature of –196° C. (Currently, samples are stored at about –80° C.) Even then, testing would be needed to confirm if the fragile microorganisms in the stool can survive.

This raises another question: Who’s going to regulate all this?

The FDA regulates the use of FMT as a drug for the treatment of C. diff, but as Dr. Liu pointed out, many gastroenterologists consider the gut microbiota an organ. In that case, human fecal matter could be regulated the same way blood, bone, or even egg cells are.

Cord blood banking may be a helpful model, Dr. Liu said.

“We don’t have to start from scratch.”

Then there’s the question of cost. Cord blood banks could be a point of reference for that too, the researchers say. They charge about $1,500 to $2,820 for the first collection and processing, plus a yearly storage fee of $185 to $370.

Despite the unknowns, one thing is for sure: The interest in fecal banking is real – and growing. At least one microbiome firm, Cordlife Group Limited, based in Singapore, announced that it has started to allow people to bank their stool for future use.

“More people should talk about it and think about it,” said Dr. Liu.

A version of this article first appeared on WebMD.com.

Lots of things can disrupt your gut health over the years. A high-sugar diet, stress, antibiotics – all are linked to bad changes in the gut microbiome, the microbes that live in your intestinal tract. And this can raise the risk of diseases.

But what if you could erase all that damage, restoring your gut to a time when you were younger and healthier?

It could be possible, scientists say, by having people take a sample of their own stool when they are young to be put back into their colons when they are older.

While the science to back this up isn’t quite there yet, some researchers are saying we shouldn’t wait. They are calling on existing stool banks to let people start banking their stool now, so it’s there for them to use if the science becomes available.

But how would that work?

First, you’d go to a stool bank and provide a fresh sample of your poop, which would be screened for diseases, washed, processed, and deposited into a long-term storage facility.

Then, down the road, if you get a condition such as inflammatory bowel disease, heart disease, or type 2 diabetes – or if you have a procedure that wipes out your microbiome, like a course of antibiotics or chemotherapy – doctors could use your preserved stool to “re-colonize” your gut, restoring it to its earlier, healthier state, said Scott Weiss, MD, professor of medicine at Harvard Medical School, Boston, and a coauthor of a recent paper on the topic. They would do that using fecal microbiota transplantation, or FMT.

Timing is everything. You’d want a sample from when you’re healthy – say, between the ages of 18 and 35, or before a chronic condition is likely, said Dr. Weiss. But if you’re still healthy into your late 30s, 40s, or even 50s, providing a sample then could still benefit you later in life.

If we could pull off a banking system like this, it could have the potential to treat autoimmune disease, inflammatory bowel disease, diabetes, obesity, and heart disease – or even reverse the effects of aging. How can we make this happen?
 

Stool banks of today

While stool banks do exist today, the samples inside are destined not for the original donors but rather for sick patients hoping to treat an illness. Using FMT, doctors transfer the fecal material to the patient’s colon, restoring helpful gut microbiota.

Some research shows FMT may help treat inflammatory bowel diseases, such as Crohn’s or ulcerative colitis. Animal studies suggest it could help treat obesity, lengthen lifespan, and reverse some effects of aging, such as age-related decline in brain function. Other clinical trials are looking into its potential as a cancer treatment, said Dr. Weiss.

But outside the lab, FMT is mainly used for one purpose: to treat Clostridioides difficile infection. It works even better than antibiotics, research shows.

But first you need to find a healthy donor, and that’s harder than you might think.
 

Finding healthy stool samples

Banking our bodily substances is nothing new. Blood banks, for example, are common throughout the United States, and cord blood banking – preserving blood from a baby’s umbilical cord to aid possible future medical needs of the child – is becoming more popular. Sperm donors are highly sought after, and doctors regularly transplant kidneys and bone marrow to patients in need.

So why are we so particular about poop?

Part of the reason may be because feces (like blood, for that matter) can harbor disease – which is why it’s so important to find healthy stool donors. Problem is, this can be surprisingly hard to do.

To donate fecal matter, people must go through a rigorous screening process, said Majdi Osman, MD, chief medical officer for OpenBiome, a nonprofit microbiome research organization.

Until recently, OpenBiome operated a stool donation program, though it has since shifted its focus to research. Potential donors were screened for diseases and mental health conditions, pathogens, and antibiotic resistance. The pass rate was less than 3%.

“We take a very cautious approach because the association between diseases and the microbiome is still being understood,” Dr. Osman said.

FMT also carries risks – though so far, they seem mild. Side effects include mild diarrhea, nausea, belly pain, and fatigue. (The reason? Even the healthiest donor stool may not mix perfectly with your own.)

That’s where the idea of using your own stool comes in, said Yang-Yu Liu, PhD, a Harvard researcher who studies the microbiome and the lead author of the paper mentioned above. It’s not just more appealing but may also be a better “match” for your body.
 

Should you bank your stool?

While the researchers say we have reason to be optimistic about the future, it’s important to remember that many challenges remain. FMT is early in development, and there’s a lot about the microbiome we still don’t know.

There’s no guarantee, for example, that restoring a person’s microbiome to its formerly disease-free state will keep diseases at bay forever, said Dr. Weiss. If your genes raise your odds of having Crohn’s, for instance, it’s possible the disease could come back.

We also don’t know how long stool samples can be preserved, said Dr. Liu. Stool banks currently store fecal matter for 1 or 2 years, not decades. To protect the proteins and DNA structures for that long, samples would likely need to be stashed at the liquid nitrogen storage temperature of –196° C. (Currently, samples are stored at about –80° C.) Even then, testing would be needed to confirm if the fragile microorganisms in the stool can survive.

This raises another question: Who’s going to regulate all this?

The FDA regulates the use of FMT as a drug for the treatment of C. diff, but as Dr. Liu pointed out, many gastroenterologists consider the gut microbiota an organ. In that case, human fecal matter could be regulated the same way blood, bone, or even egg cells are.

Cord blood banking may be a helpful model, Dr. Liu said.

“We don’t have to start from scratch.”

Then there’s the question of cost. Cord blood banks could be a point of reference for that too, the researchers say. They charge about $1,500 to $2,820 for the first collection and processing, plus a yearly storage fee of $185 to $370.

Despite the unknowns, one thing is for sure: The interest in fecal banking is real – and growing. At least one microbiome firm, Cordlife Group Limited, based in Singapore, announced that it has started to allow people to bank their stool for future use.

“More people should talk about it and think about it,” said Dr. Liu.

A version of this article first appeared on WebMD.com.

Healthy lifestyle changes to reduce systolic blood pressure to below 130 mm Hg may prevent 26,000 heart attacks and strokes and reduce health care costs over the next 10 years, a new simulation study suggests.

Among the various lifestyle changes, adopting the Dietary Approaches to Stop Hypertension diet, known as the DASH diet, may have the greatest impact for young and middle-aged adults with stage 1 hypertension.

“This research reveals that we should look to feasible ways our food system could make healthy eating the default option,” Kendra Sims, PhD, MPH, postdoctoral fellow at University of California, San Francisco, told this news organization.

“Above all, it means collaborating with the patient about nourishing choices that fit best into their culture and lifestyle,” Dr. Sims said.
 

Be proactive

“What is important is that people not wait until they have hypertension to start thinking about healthful diets,” commented Taylor Wallace, PhD, department of nutrition and food studies, George Mason University, Fairfax, Va., who was not involved in the study.

“It’s all about prevention in my mind. Whether you are hypertensive or are perfectly healthy, the DASH diet or any other dietary pattern that emphasizes consumption of fruits, vegetables, whole grains, lean meats, seafood, nuts/seeds, and low/non-fat dairy and decreased intake of saturated fats, added sugars, and sodium is a good idea,” Dr. Wallace said in an interview.

The study was presented at the American Heart Association Hypertension Scientific Sessions 2022 in San Diego.

Dr. Sims and colleagues used U.S. statistics from multiple sources to simulate CVD events, mortality, and health care costs between 2018 and 2027 in adults aged 35-64 years with untreated stage 1 hypertension, defined as systolic BP of 130 to 139 mm Hg. 

The researchers estimate that 8.8 million U.S. adults (5.5 million women) aged 35-64 years have untreated stage 1 hypertension and would be recommended for lifestyle change, such as physical activity, weight loss, moderating alcohol intake, and adoption of the DASH diet.

Controlling blood pressure to less than 130 mm Hg in this population could prevent 26,000 CVD events, avoid 2,900 deaths, and lead to $1.6 billion saved in associated health care costs, the researchers calculate.

The largest benefit would come from adoption of the DASH diet, with an estimated 15,000 CVD events prevented among men and 11,000 among women.
 

Even small changes can help

“Young and middle-aged adults with stage 1 hypertension aren’t as low risk as you – or even your doctor – might think,” Dr. Sims told this news organization.

“Millions of working-aged people are walking around with elevated blood pressure, which is symptomless but is also a leading preventable cause of disability and death. Most do not follow the recommended DASH diet,” Dr. Sims said.

“Unfortunately, the availability and affordability of healthy food sources does not easily allow people to follow the DASH diet,” Dr. Sims adds in a conference news release.

“Clinicians should consider whether their patients live in food deserts or places with limited walkability. Health counseling should include addressing these specific challenges to blood pressure control,” Dr. Sims says.

Dr. Wallace noted that diet changes don’t have to be drastic.

“Honestly, just increasing fruit and vegetable intake has been shown to displace calories from saturated fats, added sugars, and sodium,” he told this news organization.

“It’s hard for people to stick to ‘diets’ long-term, so shifting toward healthier dietary patterns without having to read a book on the DASH diet or count calories and carbs seems like a more practical solution for the general population, although I have no issues with the DASH diet and think it is a great dietary pattern for heart health,” Dr. Wallace said.

The study had no funding. Dr. Sims reports no relevant financial relationships. Dr. Wallace is principal and CEO of Think Healthy Group; chief food and nutrition scientist with Produce for Better Health Foundation; editor, Journal of Dietary Supplements; deputy editor, Journal of the American College of Nutrition; nutrition section editor, Annals of Medicine; and advisory board member with Forbes Health.

A version of this article first appeared on Medscape.com.

Healthy lifestyle changes to reduce systolic blood pressure to below 130 mm Hg may prevent 26,000 heart attacks and strokes and reduce health care costs over the next 10 years, a new simulation study suggests.

Among the various lifestyle changes, adopting the Dietary Approaches to Stop Hypertension diet, known as the DASH diet, may have the greatest impact for young and middle-aged adults with stage 1 hypertension.

“This research reveals that we should look to feasible ways our food system could make healthy eating the default option,” Kendra Sims, PhD, MPH, postdoctoral fellow at University of California, San Francisco, told this news organization.

“Above all, it means collaborating with the patient about nourishing choices that fit best into their culture and lifestyle,” Dr. Sims said.
 

Be proactive

“What is important is that people not wait until they have hypertension to start thinking about healthful diets,” commented Taylor Wallace, PhD, department of nutrition and food studies, George Mason University, Fairfax, Va., who was not involved in the study.

“It’s all about prevention in my mind. Whether you are hypertensive or are perfectly healthy, the DASH diet or any other dietary pattern that emphasizes consumption of fruits, vegetables, whole grains, lean meats, seafood, nuts/seeds, and low/non-fat dairy and decreased intake of saturated fats, added sugars, and sodium is a good idea,” Dr. Wallace said in an interview.

The study was presented at the American Heart Association Hypertension Scientific Sessions 2022 in San Diego.

Dr. Sims and colleagues used U.S. statistics from multiple sources to simulate CVD events, mortality, and health care costs between 2018 and 2027 in adults aged 35-64 years with untreated stage 1 hypertension, defined as systolic BP of 130 to 139 mm Hg. 

The researchers estimate that 8.8 million U.S. adults (5.5 million women) aged 35-64 years have untreated stage 1 hypertension and would be recommended for lifestyle change, such as physical activity, weight loss, moderating alcohol intake, and adoption of the DASH diet.

Controlling blood pressure to less than 130 mm Hg in this population could prevent 26,000 CVD events, avoid 2,900 deaths, and lead to $1.6 billion saved in associated health care costs, the researchers calculate.

The largest benefit would come from adoption of the DASH diet, with an estimated 15,000 CVD events prevented among men and 11,000 among women.
 

Even small changes can help

“Young and middle-aged adults with stage 1 hypertension aren’t as low risk as you – or even your doctor – might think,” Dr. Sims told this news organization.

“Millions of working-aged people are walking around with elevated blood pressure, which is symptomless but is also a leading preventable cause of disability and death. Most do not follow the recommended DASH diet,” Dr. Sims said.

“Unfortunately, the availability and affordability of healthy food sources does not easily allow people to follow the DASH diet,” Dr. Sims adds in a conference news release.

“Clinicians should consider whether their patients live in food deserts or places with limited walkability. Health counseling should include addressing these specific challenges to blood pressure control,” Dr. Sims says.

Dr. Wallace noted that diet changes don’t have to be drastic.

“Honestly, just increasing fruit and vegetable intake has been shown to displace calories from saturated fats, added sugars, and sodium,” he told this news organization.

“It’s hard for people to stick to ‘diets’ long-term, so shifting toward healthier dietary patterns without having to read a book on the DASH diet or count calories and carbs seems like a more practical solution for the general population, although I have no issues with the DASH diet and think it is a great dietary pattern for heart health,” Dr. Wallace said.

The study had no funding. Dr. Sims reports no relevant financial relationships. Dr. Wallace is principal and CEO of Think Healthy Group; chief food and nutrition scientist with Produce for Better Health Foundation; editor, Journal of Dietary Supplements; deputy editor, Journal of the American College of Nutrition; nutrition section editor, Annals of Medicine; and advisory board member with Forbes Health.

A version of this article first appeared on Medscape.com.

Healthy lifestyle changes to reduce systolic blood pressure to below 130 mm Hg may prevent 26,000 heart attacks and strokes and reduce health care costs over the next 10 years, a new simulation study suggests.

Among the various lifestyle changes, adopting the Dietary Approaches to Stop Hypertension diet, known as the DASH diet, may have the greatest impact for young and middle-aged adults with stage 1 hypertension.

“This research reveals that we should look to feasible ways our food system could make healthy eating the default option,” Kendra Sims, PhD, MPH, postdoctoral fellow at University of California, San Francisco, told this news organization.

“Above all, it means collaborating with the patient about nourishing choices that fit best into their culture and lifestyle,” Dr. Sims said.
 

Be proactive

“What is important is that people not wait until they have hypertension to start thinking about healthful diets,” commented Taylor Wallace, PhD, department of nutrition and food studies, George Mason University, Fairfax, Va., who was not involved in the study.

“It’s all about prevention in my mind. Whether you are hypertensive or are perfectly healthy, the DASH diet or any other dietary pattern that emphasizes consumption of fruits, vegetables, whole grains, lean meats, seafood, nuts/seeds, and low/non-fat dairy and decreased intake of saturated fats, added sugars, and sodium is a good idea,” Dr. Wallace said in an interview.

The study was presented at the American Heart Association Hypertension Scientific Sessions 2022 in San Diego.

Dr. Sims and colleagues used U.S. statistics from multiple sources to simulate CVD events, mortality, and health care costs between 2018 and 2027 in adults aged 35-64 years with untreated stage 1 hypertension, defined as systolic BP of 130 to 139 mm Hg. 

The researchers estimate that 8.8 million U.S. adults (5.5 million women) aged 35-64 years have untreated stage 1 hypertension and would be recommended for lifestyle change, such as physical activity, weight loss, moderating alcohol intake, and adoption of the DASH diet.

Controlling blood pressure to less than 130 mm Hg in this population could prevent 26,000 CVD events, avoid 2,900 deaths, and lead to $1.6 billion saved in associated health care costs, the researchers calculate.

The largest benefit would come from adoption of the DASH diet, with an estimated 15,000 CVD events prevented among men and 11,000 among women.
 

Even small changes can help

“Young and middle-aged adults with stage 1 hypertension aren’t as low risk as you – or even your doctor – might think,” Dr. Sims told this news organization.

“Millions of working-aged people are walking around with elevated blood pressure, which is symptomless but is also a leading preventable cause of disability and death. Most do not follow the recommended DASH diet,” Dr. Sims said.

“Unfortunately, the availability and affordability of healthy food sources does not easily allow people to follow the DASH diet,” Dr. Sims adds in a conference news release.

“Clinicians should consider whether their patients live in food deserts or places with limited walkability. Health counseling should include addressing these specific challenges to blood pressure control,” Dr. Sims says.

Dr. Wallace noted that diet changes don’t have to be drastic.

“Honestly, just increasing fruit and vegetable intake has been shown to displace calories from saturated fats, added sugars, and sodium,” he told this news organization.

“It’s hard for people to stick to ‘diets’ long-term, so shifting toward healthier dietary patterns without having to read a book on the DASH diet or count calories and carbs seems like a more practical solution for the general population, although I have no issues with the DASH diet and think it is a great dietary pattern for heart health,” Dr. Wallace said.

The study had no funding. Dr. Sims reports no relevant financial relationships. Dr. Wallace is principal and CEO of Think Healthy Group; chief food and nutrition scientist with Produce for Better Health Foundation; editor, Journal of Dietary Supplements; deputy editor, Journal of the American College of Nutrition; nutrition section editor, Annals of Medicine; and advisory board member with Forbes Health.

A version of this article first appeared on Medscape.com.

In recent years, increased use of integrase strand transferase inhibitor (INSTI) antiviral treatment (ART) has raised concerns about weight gain and adverse outcomes in patients with HIV. This is especially true regarding possible excessive gestational weight gain, which in women without HIV has been associated with maternal gestational diabetes, hypertensive and liver conditions, as well as related risks for preterm birth, fetal macrosomia, and higher weight after birth. 

Unfortunately, few studies in pregnant women with HIV have moved out of the controlled environment into real-world settings, potentially limiting current knowledge about the impact of gestational weight gain – as well as strategies to both prevent it and the associated adverse outcomes.

That is what a team of infectious disease specialists at the Hospital Federal dos Servidores do Estado in Rio de Janeiro recently sought to answer among a cohort of INSTI-experienced and INSTI-naive women with BMIs less than 25 kg/m² (underweight/normal weight) and higher than 25 kg/m².
 

Surprising findings

The investigators determined that rates of excessive weight gain were significantly higher in INSTI-naive women with BMI less than 25 who experienced rates as high as 31.6%, compared with approximately 12% of women who conceived while on INSTIs, regardless of BMI values at baseline (P = .004). 

However, rates of unfavorable pregnancy outcomes (for example, small for gestational age, preterm birth, stillbirth, death) appeared to be low overall and similar among all the study groups.

“We had some discussions when we were working on this and thought that the weight gain might have adverse effects,” Trevon Fuller, PhD, lead author and a postdoctoral student at the Hospital Federal dos Servidores do Estado, told this news organization.

“But it looked like the weight gain might actually be good, to the extent that we didn’t see any harm to the mom or the baby of those underweight or normal weight women who were naive to INSTIs,” he explained.

Dr. Fuller and his team enrolled 198 pregnant women living with HIV who sought care at the Hospital Federal dos Servidores do Estado – a national reference center for USAID’s Prevention of Mother to Child Transmission strategic program – between October 2014 and October 2021.

Participants were divided into two primary cohorts: BMI less than 25 at enrollment (n = 74) or BMI of 25 or higher (n = 124), then further divided by timing of INSTI-based combined ART: 

• INSTI-naive: women using INSTI-based ART (raltegravir [Isentress] 400 mg twice per day or dolutegravir [Tivicay] 50 mg/day plus 2 non-nucleoside reverse transcriptase inhibitors – lamivudine plus tenofovir disoproxil fumarate or lamivudine plus zidovudine) for 4 weeks between baseline and near delivery.
• INSTI-experienced: women who became pregnant while using INSTIs for at least 6 months before conception. 

Among underweight/normal weight participants, 77% (n = 57) were INSTI-naive and 23% (n = 17) INSTI-experienced, and among overweight/obese participants, 81.5% (n = 101) were INSTI-naive, and 18.5% (n = 23) were experienced.

Maternal age, which did not differ significantly by BMI or treatment experience, was a median of 28 years, and most participants were non-White. All participants were virally suppressed near delivery.

Study findings, which were published online  in HIV Medicine, highlighted that median weight near delivery in participants who were overweight/obese at baseline was similar regardless of whether they were treatment-experienced (90 kg [198 lb]) or treatment-naive (82.3 kg [181 lb]), P = .026.

However, participants who were underweight/normal weight who were INSTI-naive had significantly higher rates of gestational weight gain (31.5%, 18/57), compared with those of underweight/normal weight who were INSTI-experienced (11.8%, 2/17), P = .004. Notably, this gain was significant in all categories of change (that is, low < 0.18 kg/week, normal 0.18-0.59 kg/week), and high > 0.59 kg/week).

“One of the things that we took away was that this weight gain is primarily happening with women who are starting INSTIs,” said Dr. Fuller. 

“The data suggest that [it] might be temporary in the sense that there’s not going to be continuous weight gain but that it will probably approach some type of horizontal asymptote,” he added.

Although obstetric and neonatal outcomes were secondary measures, the investigators did not observe any significantly different outcomes when comparing the groups, and there were no stillbirths, neonatal deaths, or macrosomia.

Preterm delivery rates in underweight/normal weight participants who were INSTI-experienced (11.8%, 2/17) and INSTI-naive (5.3%, 3/57) were similar to overweight/obese participants who were INSTI-experienced (13%, 3/23) and INSTI-naive (6.9%, 7/101).

The same was true for low birthweight.

Still, the study appears to raise more questions than it answers, Sigal Yawetz, MD, an infectious disease specialist at Brigham and Women’s Hospital, Boston, said in an interview – a factor that she said is common also in some of the more recent randomized controlled studies, such as IMPAACT PROMISE.

Dr. Yawetz, who was not involved in the study, also noted, “The groups were small, so comparisons within the groups are difficult, and so many people were excluded that it’s hard to know if there were adverse outcomes related to this ... It’s very confounded.”

The World Health Organization estimates that there are roughly 1.3 million pregnant women with HIV, 81% of whom are on antiretroviral therapy. Although the literature continues to evolve, data suggest that in general, Black women are at greater risk for gestational weight gain.

“We have to remember that women who gain excess weight in pregnancy are still going to be with this weight following pregnancy as well,” Dr. Yawetz said. “So, it might impact their pregnancy but also their health after delivery and for subsequent pregnancies, which we don’t have data for yet.”

Dr. Fuller agrees that more data are needed and mentioned that the team plans to study this further, ideally with larger sample sizes.

Yet, despite the lingering questions, there is a silver lining, one that Dr. Yawetz was emphatic about.

“I really welcome people doing studies on this because we really need the data. By far, integrase inhibitors are the first-line regimen all over the world for pregnant women, and if you look at the gestalt or full picture, this is the best regimen to give pregnant women,” she said.

Dr. Fuller and Dr. Yawetz report no relevant financial relationships. The study was independently supported.

A version of this article first appeared on Medscape.com.

In recent years, increased use of integrase strand transferase inhibitor (INSTI) antiviral treatment (ART) has raised concerns about weight gain and adverse outcomes in patients with HIV. This is especially true regarding possible excessive gestational weight gain, which in women without HIV has been associated with maternal gestational diabetes, hypertensive and liver conditions, as well as related risks for preterm birth, fetal macrosomia, and higher weight after birth. 

Unfortunately, few studies in pregnant women with HIV have moved out of the controlled environment into real-world settings, potentially limiting current knowledge about the impact of gestational weight gain – as well as strategies to both prevent it and the associated adverse outcomes.

That is what a team of infectious disease specialists at the Hospital Federal dos Servidores do Estado in Rio de Janeiro recently sought to answer among a cohort of INSTI-experienced and INSTI-naive women with BMIs less than 25 kg/m² (underweight/normal weight) and higher than 25 kg/m².
 

Surprising findings

The investigators determined that rates of excessive weight gain were significantly higher in INSTI-naive women with BMI less than 25 who experienced rates as high as 31.6%, compared with approximately 12% of women who conceived while on INSTIs, regardless of BMI values at baseline (P = .004). 

However, rates of unfavorable pregnancy outcomes (for example, small for gestational age, preterm birth, stillbirth, death) appeared to be low overall and similar among all the study groups.

“We had some discussions when we were working on this and thought that the weight gain might have adverse effects,” Trevon Fuller, PhD, lead author and a postdoctoral student at the Hospital Federal dos Servidores do Estado, told this news organization.

“But it looked like the weight gain might actually be good, to the extent that we didn’t see any harm to the mom or the baby of those underweight or normal weight women who were naive to INSTIs,” he explained.

Dr. Fuller and his team enrolled 198 pregnant women living with HIV who sought care at the Hospital Federal dos Servidores do Estado – a national reference center for USAID’s Prevention of Mother to Child Transmission strategic program – between October 2014 and October 2021.

Participants were divided into two primary cohorts: BMI less than 25 at enrollment (n = 74) or BMI of 25 or higher (n = 124), then further divided by timing of INSTI-based combined ART: 

• INSTI-naive: women using INSTI-based ART (raltegravir [Isentress] 400 mg twice per day or dolutegravir [Tivicay] 50 mg/day plus 2 non-nucleoside reverse transcriptase inhibitors – lamivudine plus tenofovir disoproxil fumarate or lamivudine plus zidovudine) for 4 weeks between baseline and near delivery.
• INSTI-experienced: women who became pregnant while using INSTIs for at least 6 months before conception. 

Among underweight/normal weight participants, 77% (n = 57) were INSTI-naive and 23% (n = 17) INSTI-experienced, and among overweight/obese participants, 81.5% (n = 101) were INSTI-naive, and 18.5% (n = 23) were experienced.

Maternal age, which did not differ significantly by BMI or treatment experience, was a median of 28 years, and most participants were non-White. All participants were virally suppressed near delivery.

Study findings, which were published online  in HIV Medicine, highlighted that median weight near delivery in participants who were overweight/obese at baseline was similar regardless of whether they were treatment-experienced (90 kg [198 lb]) or treatment-naive (82.3 kg [181 lb]), P = .026.

However, participants who were underweight/normal weight who were INSTI-naive had significantly higher rates of gestational weight gain (31.5%, 18/57), compared with those of underweight/normal weight who were INSTI-experienced (11.8%, 2/17), P = .004. Notably, this gain was significant in all categories of change (that is, low < 0.18 kg/week, normal 0.18-0.59 kg/week), and high > 0.59 kg/week).

“One of the things that we took away was that this weight gain is primarily happening with women who are starting INSTIs,” said Dr. Fuller. 

“The data suggest that [it] might be temporary in the sense that there’s not going to be continuous weight gain but that it will probably approach some type of horizontal asymptote,” he added.

Although obstetric and neonatal outcomes were secondary measures, the investigators did not observe any significantly different outcomes when comparing the groups, and there were no stillbirths, neonatal deaths, or macrosomia.

Preterm delivery rates in underweight/normal weight participants who were INSTI-experienced (11.8%, 2/17) and INSTI-naive (5.3%, 3/57) were similar to overweight/obese participants who were INSTI-experienced (13%, 3/23) and INSTI-naive (6.9%, 7/101).

The same was true for low birthweight.

Still, the study appears to raise more questions than it answers, Sigal Yawetz, MD, an infectious disease specialist at Brigham and Women’s Hospital, Boston, said in an interview – a factor that she said is common also in some of the more recent randomized controlled studies, such as IMPAACT PROMISE.

Dr. Yawetz, who was not involved in the study, also noted, “The groups were small, so comparisons within the groups are difficult, and so many people were excluded that it’s hard to know if there were adverse outcomes related to this ... It’s very confounded.”

The World Health Organization estimates that there are roughly 1.3 million pregnant women with HIV, 81% of whom are on antiretroviral therapy. Although the literature continues to evolve, data suggest that in general, Black women are at greater risk for gestational weight gain.

“We have to remember that women who gain excess weight in pregnancy are still going to be with this weight following pregnancy as well,” Dr. Yawetz said. “So, it might impact their pregnancy but also their health after delivery and for subsequent pregnancies, which we don’t have data for yet.”

Dr. Fuller agrees that more data are needed and mentioned that the team plans to study this further, ideally with larger sample sizes.

Yet, despite the lingering questions, there is a silver lining, one that Dr. Yawetz was emphatic about.

“I really welcome people doing studies on this because we really need the data. By far, integrase inhibitors are the first-line regimen all over the world for pregnant women, and if you look at the gestalt or full picture, this is the best regimen to give pregnant women,” she said.

Dr. Fuller and Dr. Yawetz report no relevant financial relationships. The study was independently supported.

A version of this article first appeared on Medscape.com.

In recent years, increased use of integrase strand transferase inhibitor (INSTI) antiviral treatment (ART) has raised concerns about weight gain and adverse outcomes in patients with HIV. This is especially true regarding possible excessive gestational weight gain, which in women without HIV has been associated with maternal gestational diabetes, hypertensive and liver conditions, as well as related risks for preterm birth, fetal macrosomia, and higher weight after birth. 

Unfortunately, few studies in pregnant women with HIV have moved out of the controlled environment into real-world settings, potentially limiting current knowledge about the impact of gestational weight gain – as well as strategies to both prevent it and the associated adverse outcomes.

That is what a team of infectious disease specialists at the Hospital Federal dos Servidores do Estado in Rio de Janeiro recently sought to answer among a cohort of INSTI-experienced and INSTI-naive women with BMIs less than 25 kg/m² (underweight/normal weight) and higher than 25 kg/m².
 

Surprising findings

The investigators determined that rates of excessive weight gain were significantly higher in INSTI-naive women with BMI less than 25 who experienced rates as high as 31.6%, compared with approximately 12% of women who conceived while on INSTIs, regardless of BMI values at baseline (P = .004). 

However, rates of unfavorable pregnancy outcomes (for example, small for gestational age, preterm birth, stillbirth, death) appeared to be low overall and similar among all the study groups.

“We had some discussions when we were working on this and thought that the weight gain might have adverse effects,” Trevon Fuller, PhD, lead author and a postdoctoral student at the Hospital Federal dos Servidores do Estado, told this news organization.

“But it looked like the weight gain might actually be good, to the extent that we didn’t see any harm to the mom or the baby of those underweight or normal weight women who were naive to INSTIs,” he explained.

Dr. Fuller and his team enrolled 198 pregnant women living with HIV who sought care at the Hospital Federal dos Servidores do Estado – a national reference center for USAID’s Prevention of Mother to Child Transmission strategic program – between October 2014 and October 2021.

Participants were divided into two primary cohorts: BMI less than 25 at enrollment (n = 74) or BMI of 25 or higher (n = 124), then further divided by timing of INSTI-based combined ART: 

• INSTI-naive: women using INSTI-based ART (raltegravir [Isentress] 400 mg twice per day or dolutegravir [Tivicay] 50 mg/day plus 2 non-nucleoside reverse transcriptase inhibitors – lamivudine plus tenofovir disoproxil fumarate or lamivudine plus zidovudine) for 4 weeks between baseline and near delivery.
• INSTI-experienced: women who became pregnant while using INSTIs for at least 6 months before conception. 

Among underweight/normal weight participants, 77% (n = 57) were INSTI-naive and 23% (n = 17) INSTI-experienced, and among overweight/obese participants, 81.5% (n = 101) were INSTI-naive, and 18.5% (n = 23) were experienced.

Maternal age, which did not differ significantly by BMI or treatment experience, was a median of 28 years, and most participants were non-White. All participants were virally suppressed near delivery.

Study findings, which were published online  in HIV Medicine, highlighted that median weight near delivery in participants who were overweight/obese at baseline was similar regardless of whether they were treatment-experienced (90 kg [198 lb]) or treatment-naive (82.3 kg [181 lb]), P = .026.

However, participants who were underweight/normal weight who were INSTI-naive had significantly higher rates of gestational weight gain (31.5%, 18/57), compared with those of underweight/normal weight who were INSTI-experienced (11.8%, 2/17), P = .004. Notably, this gain was significant in all categories of change (that is, low < 0.18 kg/week, normal 0.18-0.59 kg/week), and high > 0.59 kg/week).

“One of the things that we took away was that this weight gain is primarily happening with women who are starting INSTIs,” said Dr. Fuller. 

“The data suggest that [it] might be temporary in the sense that there’s not going to be continuous weight gain but that it will probably approach some type of horizontal asymptote,” he added.

Although obstetric and neonatal outcomes were secondary measures, the investigators did not observe any significantly different outcomes when comparing the groups, and there were no stillbirths, neonatal deaths, or macrosomia.

Preterm delivery rates in underweight/normal weight participants who were INSTI-experienced (11.8%, 2/17) and INSTI-naive (5.3%, 3/57) were similar to overweight/obese participants who were INSTI-experienced (13%, 3/23) and INSTI-naive (6.9%, 7/101).

The same was true for low birthweight.

Still, the study appears to raise more questions than it answers, Sigal Yawetz, MD, an infectious disease specialist at Brigham and Women’s Hospital, Boston, said in an interview – a factor that she said is common also in some of the more recent randomized controlled studies, such as IMPAACT PROMISE.

Dr. Yawetz, who was not involved in the study, also noted, “The groups were small, so comparisons within the groups are difficult, and so many people were excluded that it’s hard to know if there were adverse outcomes related to this ... It’s very confounded.”

The World Health Organization estimates that there are roughly 1.3 million pregnant women with HIV, 81% of whom are on antiretroviral therapy. Although the literature continues to evolve, data suggest that in general, Black women are at greater risk for gestational weight gain.

“We have to remember that women who gain excess weight in pregnancy are still going to be with this weight following pregnancy as well,” Dr. Yawetz said. “So, it might impact their pregnancy but also their health after delivery and for subsequent pregnancies, which we don’t have data for yet.”

Dr. Fuller agrees that more data are needed and mentioned that the team plans to study this further, ideally with larger sample sizes.

Yet, despite the lingering questions, there is a silver lining, one that Dr. Yawetz was emphatic about.

“I really welcome people doing studies on this because we really need the data. By far, integrase inhibitors are the first-line regimen all over the world for pregnant women, and if you look at the gestalt or full picture, this is the best regimen to give pregnant women,” she said.

Dr. Fuller and Dr. Yawetz report no relevant financial relationships. The study was independently supported.

A version of this article first appeared on Medscape.com.

Obesity in women of reproductive age has emerged as one of the main risk factors associated with neonatal complications and long-term neuropsychiatric consequences in offspring, including attention-deficit/hyperactivity disorder.

Research has also linked pregestational diabetes and gestational diabetes mellitus (GDM) to an increased risk for ADHD in offspring. Now, an observational study of 1,036 singleton births at one hospital between 1998 and 2008 suggests that in the presence of GDM, maternal obesity combined with excessive weight gain during pregnancy may be jointly associated with increased risk of offspring ADHD. The median follow-up was 17.7 years.

Maternal obesity was independently associated with ADHD (adjusted hazard ratio, 1.66; 95% confidence interval: 1.07-2.60), but excessive weight gain during pregnancy and maternal overweight were not, reported Verónica Perea, MD, PhD, of the Hospital Universitari Mútua de Terrassa, Barcelona, and colleagues in the Journal of Clinical Endocrinology & Metabolism.

However, in women with pregestation obesity who gained more weight than recommended by the National Academy of Medicine (NAM), the risk of offspring ADHD was higher, compared with women of normal weight whose pregnancy weight stayed within NAM guidelines (adjusted hazard ratio, 2.13; 95% confidence interval: 1.14-4.01).

“The results of this study suggest that the negative repercussions of excessive weight gain on children within the setting of a high-risk population with GDM and obesity were not only observed during the prenatal period but also years later with a development of ADHD,” the researchers wrote.

The study also showed that when maternal weight gain did not exceed NAM guidelines, maternal obesity was no longer independently associated with ADHD in offspring (aHR, 1.36; 95% CI: 0.78-2.36). This finding conflicts with earlier studies focusing primarily on the role of pregestational maternal weight, the researchers said. A 2018 nationwide Finnish cohort study in newborns showed an increased long-term risk of ADHD in those born to women with GDM, compared with the nondiabetic population. This long-term risk of ADHD increased in the presence of pregestational obesity (HR, 1.64).

Similarly, evidence from systematic reviews and meta-analyses has demonstrated that antenatal lifestyle interventions to prevent excessive weight gain during pregnancy were associated with a reduction in adverse pregnancy outcomes. However, evidence on offspring mental health was lacking, especially in high-risk pregnancies with gestational diabetes, the study authors said.

Although causal inferences can’t be drawn from the current observational study, “it seems that the higher risk [of ADHD] observed would be explained by the role of gestational weight gain during the antenatal period,” Dr. Perea said in an interview. Importantly, the study highlights a window of opportunity for promoting healthy weight gain during pregnancy, Dr. Perea said. ”This should be a priority in the current management of gestation.”

Fatima Cody Stanford, MD, MPH, an associate professor of medicine and pediatrics at Harvard Medical School, Boston, agreed. “I think one of the key issues is that there’s very little attention paid to how weight gain is regulated during pregnancy,” she said in an interview. On many other points, however, Dr. Stanford, who is a specialist in obesity medicine at Massachusetts General Hospital Weight Center, did not agree.

The association between ADHD and obesity has already been well established by a 2019 meta-analysis and systematic review of studies over the last 10 years, she emphasized. “These studies were able to show a much stronger association between maternal obesity and ADHD in offspring because they were powered to detect differences.”

The current study does not say “anything new or novel,” Dr. Stanford added. “Maternal obesity and the association with an increased risk of ADHD in offspring is the main issue. I don’t think there was any appreciable increase when weight gain during pregnancy was factored in. It’s mild at best.”

Eran Bornstein, MD, vice-chair of obstetrics and gynecology at Lenox Hill Hospital, New York, expressed a similar point of view. Although the study findings “add to the current literature,” they should be interpreted “cautiously,” Dr. Bornstein said in an interview.

The size of the effect on ADHD risk attributable to maternal weight gain during pregnancy “was not clear,” he said. “Cohort studies of this sort are excellent for finding associations which help us generate the hypothesis, but this doesn’t demonstrate a cause and effect or a magnitude for this effect.”

Physicians should follow cumulative data suggesting that maternal obesity is associated with a number of pregnancy complications and neonatal outcomes in women with and without diabetes, Dr. Bornstein suggested. “Optimizing maternal weight prior to pregnancy and adhering to recommendations regarding weight gain has the potential to improve some of these outcomes.”

Treating obesity prior to conception mitigates GDM risk, agreed Dr. Stanford. “The issue,” she explained, “is that all of the drugs approved for the treatment of obesity are contraindicated in pregnancy and lifestyle modification fails in 96% of cases, even when there is no pregnancy.” Drugs such as metformin are being used off-label to treat obesity and to safely manage gestational weight gain, she said. “Those of us who practice obesity medicine know that metformin can be safely used throughout pregnancy with no harm to the fetus.”

This study was partially funded by Fundació Docència i Recerca MútuaTerrassa. Dr. Perea and study coauthors reporting have no conflicts of interest. Dr. Stanford disclosed relationships with Novo Nordisk, Eli Lilly, Boehringer Ingelheim, Gelesis, Pfizer, Currax, and Rhythm. Dr. Bornstein reported having no conflicts of interest.

This story was updated on 11/7/2022. 

obnews@mdedge.com

Obesity in women of reproductive age has emerged as one of the main risk factors associated with neonatal complications and long-term neuropsychiatric consequences in offspring, including attention-deficit/hyperactivity disorder.

Research has also linked pregestational diabetes and gestational diabetes mellitus (GDM) to an increased risk for ADHD in offspring. Now, an observational study of 1,036 singleton births at one hospital between 1998 and 2008 suggests that in the presence of GDM, maternal obesity combined with excessive weight gain during pregnancy may be jointly associated with increased risk of offspring ADHD. The median follow-up was 17.7 years.

Maternal obesity was independently associated with ADHD (adjusted hazard ratio, 1.66; 95% confidence interval: 1.07-2.60), but excessive weight gain during pregnancy and maternal overweight were not, reported Verónica Perea, MD, PhD, of the Hospital Universitari Mútua de Terrassa, Barcelona, and colleagues in the Journal of Clinical Endocrinology & Metabolism.

However, in women with pregestation obesity who gained more weight than recommended by the National Academy of Medicine (NAM), the risk of offspring ADHD was higher, compared with women of normal weight whose pregnancy weight stayed within NAM guidelines (adjusted hazard ratio, 2.13; 95% confidence interval: 1.14-4.01).

“The results of this study suggest that the negative repercussions of excessive weight gain on children within the setting of a high-risk population with GDM and obesity were not only observed during the prenatal period but also years later with a development of ADHD,” the researchers wrote.

The study also showed that when maternal weight gain did not exceed NAM guidelines, maternal obesity was no longer independently associated with ADHD in offspring (aHR, 1.36; 95% CI: 0.78-2.36). This finding conflicts with earlier studies focusing primarily on the role of pregestational maternal weight, the researchers said. A 2018 nationwide Finnish cohort study in newborns showed an increased long-term risk of ADHD in those born to women with GDM, compared with the nondiabetic population. This long-term risk of ADHD increased in the presence of pregestational obesity (HR, 1.64).

Similarly, evidence from systematic reviews and meta-analyses has demonstrated that antenatal lifestyle interventions to prevent excessive weight gain during pregnancy were associated with a reduction in adverse pregnancy outcomes. However, evidence on offspring mental health was lacking, especially in high-risk pregnancies with gestational diabetes, the study authors said.

Although causal inferences can’t be drawn from the current observational study, “it seems that the higher risk [of ADHD] observed would be explained by the role of gestational weight gain during the antenatal period,” Dr. Perea said in an interview. Importantly, the study highlights a window of opportunity for promoting healthy weight gain during pregnancy, Dr. Perea said. ”This should be a priority in the current management of gestation.”

Fatima Cody Stanford, MD, MPH, an associate professor of medicine and pediatrics at Harvard Medical School, Boston, agreed. “I think one of the key issues is that there’s very little attention paid to how weight gain is regulated during pregnancy,” she said in an interview. On many other points, however, Dr. Stanford, who is a specialist in obesity medicine at Massachusetts General Hospital Weight Center, did not agree.

The association between ADHD and obesity has already been well established by a 2019 meta-analysis and systematic review of studies over the last 10 years, she emphasized. “These studies were able to show a much stronger association between maternal obesity and ADHD in offspring because they were powered to detect differences.”

The current study does not say “anything new or novel,” Dr. Stanford added. “Maternal obesity and the association with an increased risk of ADHD in offspring is the main issue. I don’t think there was any appreciable increase when weight gain during pregnancy was factored in. It’s mild at best.”

Eran Bornstein, MD, vice-chair of obstetrics and gynecology at Lenox Hill Hospital, New York, expressed a similar point of view. Although the study findings “add to the current literature,” they should be interpreted “cautiously,” Dr. Bornstein said in an interview.

The size of the effect on ADHD risk attributable to maternal weight gain during pregnancy “was not clear,” he said. “Cohort studies of this sort are excellent for finding associations which help us generate the hypothesis, but this doesn’t demonstrate a cause and effect or a magnitude for this effect.”

Physicians should follow cumulative data suggesting that maternal obesity is associated with a number of pregnancy complications and neonatal outcomes in women with and without diabetes, Dr. Bornstein suggested. “Optimizing maternal weight prior to pregnancy and adhering to recommendations regarding weight gain has the potential to improve some of these outcomes.”

Treating obesity prior to conception mitigates GDM risk, agreed Dr. Stanford. “The issue,” she explained, “is that all of the drugs approved for the treatment of obesity are contraindicated in pregnancy and lifestyle modification fails in 96% of cases, even when there is no pregnancy.” Drugs such as metformin are being used off-label to treat obesity and to safely manage gestational weight gain, she said. “Those of us who practice obesity medicine know that metformin can be safely used throughout pregnancy with no harm to the fetus.”

This study was partially funded by Fundació Docència i Recerca MútuaTerrassa. Dr. Perea and study coauthors reporting have no conflicts of interest. Dr. Stanford disclosed relationships with Novo Nordisk, Eli Lilly, Boehringer Ingelheim, Gelesis, Pfizer, Currax, and Rhythm. Dr. Bornstein reported having no conflicts of interest.

This story was updated on 11/7/2022. 

obnews@mdedge.com

Obesity in women of reproductive age has emerged as one of the main risk factors associated with neonatal complications and long-term neuropsychiatric consequences in offspring, including attention-deficit/hyperactivity disorder.

Research has also linked pregestational diabetes and gestational diabetes mellitus (GDM) to an increased risk for ADHD in offspring. Now, an observational study of 1,036 singleton births at one hospital between 1998 and 2008 suggests that in the presence of GDM, maternal obesity combined with excessive weight gain during pregnancy may be jointly associated with increased risk of offspring ADHD. The median follow-up was 17.7 years.

Maternal obesity was independently associated with ADHD (adjusted hazard ratio, 1.66; 95% confidence interval: 1.07-2.60), but excessive weight gain during pregnancy and maternal overweight were not, reported Verónica Perea, MD, PhD, of the Hospital Universitari Mútua de Terrassa, Barcelona, and colleagues in the Journal of Clinical Endocrinology & Metabolism.

However, in women with pregestation obesity who gained more weight than recommended by the National Academy of Medicine (NAM), the risk of offspring ADHD was higher, compared with women of normal weight whose pregnancy weight stayed within NAM guidelines (adjusted hazard ratio, 2.13; 95% confidence interval: 1.14-4.01).

“The results of this study suggest that the negative repercussions of excessive weight gain on children within the setting of a high-risk population with GDM and obesity were not only observed during the prenatal period but also years later with a development of ADHD,” the researchers wrote.

The study also showed that when maternal weight gain did not exceed NAM guidelines, maternal obesity was no longer independently associated with ADHD in offspring (aHR, 1.36; 95% CI: 0.78-2.36). This finding conflicts with earlier studies focusing primarily on the role of pregestational maternal weight, the researchers said. A 2018 nationwide Finnish cohort study in newborns showed an increased long-term risk of ADHD in those born to women with GDM, compared with the nondiabetic population. This long-term risk of ADHD increased in the presence of pregestational obesity (HR, 1.64).

Similarly, evidence from systematic reviews and meta-analyses has demonstrated that antenatal lifestyle interventions to prevent excessive weight gain during pregnancy were associated with a reduction in adverse pregnancy outcomes. However, evidence on offspring mental health was lacking, especially in high-risk pregnancies with gestational diabetes, the study authors said.

Although causal inferences can’t be drawn from the current observational study, “it seems that the higher risk [of ADHD] observed would be explained by the role of gestational weight gain during the antenatal period,” Dr. Perea said in an interview. Importantly, the study highlights a window of opportunity for promoting healthy weight gain during pregnancy, Dr. Perea said. ”This should be a priority in the current management of gestation.”

Fatima Cody Stanford, MD, MPH, an associate professor of medicine and pediatrics at Harvard Medical School, Boston, agreed. “I think one of the key issues is that there’s very little attention paid to how weight gain is regulated during pregnancy,” she said in an interview. On many other points, however, Dr. Stanford, who is a specialist in obesity medicine at Massachusetts General Hospital Weight Center, did not agree.

The association between ADHD and obesity has already been well established by a 2019 meta-analysis and systematic review of studies over the last 10 years, she emphasized. “These studies were able to show a much stronger association between maternal obesity and ADHD in offspring because they were powered to detect differences.”

The current study does not say “anything new or novel,” Dr. Stanford added. “Maternal obesity and the association with an increased risk of ADHD in offspring is the main issue. I don’t think there was any appreciable increase when weight gain during pregnancy was factored in. It’s mild at best.”

Eran Bornstein, MD, vice-chair of obstetrics and gynecology at Lenox Hill Hospital, New York, expressed a similar point of view. Although the study findings “add to the current literature,” they should be interpreted “cautiously,” Dr. Bornstein said in an interview.

The size of the effect on ADHD risk attributable to maternal weight gain during pregnancy “was not clear,” he said. “Cohort studies of this sort are excellent for finding associations which help us generate the hypothesis, but this doesn’t demonstrate a cause and effect or a magnitude for this effect.”

Physicians should follow cumulative data suggesting that maternal obesity is associated with a number of pregnancy complications and neonatal outcomes in women with and without diabetes, Dr. Bornstein suggested. “Optimizing maternal weight prior to pregnancy and adhering to recommendations regarding weight gain has the potential to improve some of these outcomes.”

Treating obesity prior to conception mitigates GDM risk, agreed Dr. Stanford. “The issue,” she explained, “is that all of the drugs approved for the treatment of obesity are contraindicated in pregnancy and lifestyle modification fails in 96% of cases, even when there is no pregnancy.” Drugs such as metformin are being used off-label to treat obesity and to safely manage gestational weight gain, she said. “Those of us who practice obesity medicine know that metformin can be safely used throughout pregnancy with no harm to the fetus.”

This study was partially funded by Fundació Docència i Recerca MútuaTerrassa. Dr. Perea and study coauthors reporting have no conflicts of interest. Dr. Stanford disclosed relationships with Novo Nordisk, Eli Lilly, Boehringer Ingelheim, Gelesis, Pfizer, Currax, and Rhythm. Dr. Bornstein reported having no conflicts of interest.

This story was updated on 11/7/2022. 

obnews@mdedge.com

Chronic lack of exercise – dubbed “exercise deficiency” – is associated with cardiac atrophy, reduced cardiac output and chamber size, and diminished cardiorespiratory fitness (CRF) in a subgroup of patients with heart failure with preserved ejection fraction (HFpEF), researchers say.

Increasing the physical activity levels of these sedentary individuals could be an effective preventive strategy, particularly for those who are younger and middle-aged, they suggest.

Thinking of HFpEF as an exercise deficiency syndrome leading to a small heart “flies in the face of decades of cardiovascular teaching, because traditionally, we’ve thought of heart failure as the big floppy heart,” Andre La Gerche, MBBS, PhD, of the Baker Heart and Diabetes Institute, Melbourne, told this news organization.

“While it is true that some people with HFpEF have thick, stiff hearts, we propose that another subset has a normal heart, except it’s small because it’s been underexercised,” he said.

The article, published online  as part of a Focus Seminar series in the Journal of the American College of Cardiology, has “gone viral on social media,” Jason C. Kovacic, MBBS, PhD, of the Victor Chang Cardiac Research Institute, Darlinghurst, Australia, told this news organization.

Dr. Kovacic is a JACC section editor and the coordinating and senior author of the series, which covers other issues surrounding physical activity, both in athletes and the general public.
 

‘Coin-dropping moment’

To support their hypothesis that HFpEF is an exercise deficiency in certain patients, Dr. La Gerche and colleagues conducted a literature review that highlights the following points:

• There is a strong association between physical activity and both CRF and heart function.
• Exercise deficiency is a major risk factor for HFpEF in a subset of patients.
• Increasing physical activity is associated with greater cardiac mass, stroke volumes, cardiac output, and peak oxygen consumption.
• Physical inactivity leads to loss of heart muscle, reduced output and chamber size, and less ability to improve cardiac performance with exercise.
• Aging results in a smaller, stiffer heart; however, this effect is mitigated by regular exercise.
• Individuals who are sedentary throughout life cannot attenuate age-related reductions in heart size and have increasing chamber stiffness.

“When we explain it, it’s like a coin-dropping moment, because it’s actually a really simple concept,” Dr. La Gerche said. “A small heart has a small stroke volume. A patient with a small heart with a maximal stroke volume of 60 mL can generate a cardiac output of 9 L/min at a heart rate of 150 beats/min during exercise – an output that just isn’t enough. It’s like trying to drive a truck with a 50cc motorbike engine.”

“Plus,” Dr. La Gerche added, “exercise deficiency also sets the stage for comorbidities such as obesity, diabetes, and high blood pressure, all of which can ultimately lead to HFpEF.”

Considering HFpEF as an exercise deficiency syndrome has two clinical implications, Dr. La Gerche said. “First, it helps us understand the condition and diagnose more cases. For example, I think practitioners will start to recognize that breathlessness in some of their patients is associated with a small heart.”

“Second,” he said, “if it’s an exercise deficiency syndrome, the treatment is exercise. For most people, that means exercising regularly before the age of 60 to prevent HFpEF, because studies have found that after the age of 60, the heart is a bit fixed and harder to remodel. That doesn’t mean you shouldn’t try after 60 or that you won’t get benefit. But the real sweet spot is in middle age and younger.”
 

The bigger picture

The JACC Focus Seminar series starts with an article that underscores the benefits of regular physical activity. “The key is getting our patients to meet the guidelines: 150 to 300 minutes of moderate intensity exercise per week, or 75 to 250 minutes of vigorous activity per week,” Dr. Kovacic emphasized.

“Yes, we can give a statin to lower cholesterol. Yes, we can give a blood pressure medication to lower blood pressure. But when you prescribe exercise, you impact patients’ blood pressure, their cholesterol, their weight, their sense of well-being,” he said. “It cuts across so many different aspects of people’s lives that it’s important to underscore the value of exercise to everybody.”

That includes physicians, he affirmed. “It behooves all physicians to be leading by example. I would encourage those who are overweight or aren’t exercising as much as they should be to make the time to be healthy and to exercise. If you don’t, then bad health will force you to make the time to deal with bad health issues.”

Other articles in the series deal with the athlete’s heart. Christopher Semsarian, MBBS, PhD, MPH, University of Sydney, and colleagues discuss emerging data on hypertrophic cardiomyopathy and other genetic cardiovascular diseases, with the conclusion that it is probably okay for more athletes with these conditions to participate in recreational and competitive sports than was previously thought – another paradigm shift, according to Dr. Kovacic.

The final article addresses some of the challenges and controversies related to the athlete’s heart, including whether extreme exercise is associated with vulnerability to atrial fibrillation and other arrhythmias, and the impact of gender on the cardiac response to exercise, which can’t be determined now because of a paucity of data on women in sports.

Overall, Dr. Kovacic said, the series makes for “compelling” reading that should encourage readers to embark on their own studies to add to the data and support exercise prescription across the board.

No commercial funding or relevant conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

Chronic lack of exercise – dubbed “exercise deficiency” – is associated with cardiac atrophy, reduced cardiac output and chamber size, and diminished cardiorespiratory fitness (CRF) in a subgroup of patients with heart failure with preserved ejection fraction (HFpEF), researchers say.

Increasing the physical activity levels of these sedentary individuals could be an effective preventive strategy, particularly for those who are younger and middle-aged, they suggest.

Thinking of HFpEF as an exercise deficiency syndrome leading to a small heart “flies in the face of decades of cardiovascular teaching, because traditionally, we’ve thought of heart failure as the big floppy heart,” Andre La Gerche, MBBS, PhD, of the Baker Heart and Diabetes Institute, Melbourne, told this news organization.

“While it is true that some people with HFpEF have thick, stiff hearts, we propose that another subset has a normal heart, except it’s small because it’s been underexercised,” he said.

The article, published online  as part of a Focus Seminar series in the Journal of the American College of Cardiology, has “gone viral on social media,” Jason C. Kovacic, MBBS, PhD, of the Victor Chang Cardiac Research Institute, Darlinghurst, Australia, told this news organization.

Dr. Kovacic is a JACC section editor and the coordinating and senior author of the series, which covers other issues surrounding physical activity, both in athletes and the general public.
 

‘Coin-dropping moment’

To support their hypothesis that HFpEF is an exercise deficiency in certain patients, Dr. La Gerche and colleagues conducted a literature review that highlights the following points:

• There is a strong association between physical activity and both CRF and heart function.
• Exercise deficiency is a major risk factor for HFpEF in a subset of patients.
• Increasing physical activity is associated with greater cardiac mass, stroke volumes, cardiac output, and peak oxygen consumption.
• Physical inactivity leads to loss of heart muscle, reduced output and chamber size, and less ability to improve cardiac performance with exercise.
• Aging results in a smaller, stiffer heart; however, this effect is mitigated by regular exercise.
• Individuals who are sedentary throughout life cannot attenuate age-related reductions in heart size and have increasing chamber stiffness.

“When we explain it, it’s like a coin-dropping moment, because it’s actually a really simple concept,” Dr. La Gerche said. “A small heart has a small stroke volume. A patient with a small heart with a maximal stroke volume of 60 mL can generate a cardiac output of 9 L/min at a heart rate of 150 beats/min during exercise – an output that just isn’t enough. It’s like trying to drive a truck with a 50cc motorbike engine.”

“Plus,” Dr. La Gerche added, “exercise deficiency also sets the stage for comorbidities such as obesity, diabetes, and high blood pressure, all of which can ultimately lead to HFpEF.”

Considering HFpEF as an exercise deficiency syndrome has two clinical implications, Dr. La Gerche said. “First, it helps us understand the condition and diagnose more cases. For example, I think practitioners will start to recognize that breathlessness in some of their patients is associated with a small heart.”

“Second,” he said, “if it’s an exercise deficiency syndrome, the treatment is exercise. For most people, that means exercising regularly before the age of 60 to prevent HFpEF, because studies have found that after the age of 60, the heart is a bit fixed and harder to remodel. That doesn’t mean you shouldn’t try after 60 or that you won’t get benefit. But the real sweet spot is in middle age and younger.”
 

The bigger picture

The JACC Focus Seminar series starts with an article that underscores the benefits of regular physical activity. “The key is getting our patients to meet the guidelines: 150 to 300 minutes of moderate intensity exercise per week, or 75 to 250 minutes of vigorous activity per week,” Dr. Kovacic emphasized.

“Yes, we can give a statin to lower cholesterol. Yes, we can give a blood pressure medication to lower blood pressure. But when you prescribe exercise, you impact patients’ blood pressure, their cholesterol, their weight, their sense of well-being,” he said. “It cuts across so many different aspects of people’s lives that it’s important to underscore the value of exercise to everybody.”

That includes physicians, he affirmed. “It behooves all physicians to be leading by example. I would encourage those who are overweight or aren’t exercising as much as they should be to make the time to be healthy and to exercise. If you don’t, then bad health will force you to make the time to deal with bad health issues.”

Other articles in the series deal with the athlete’s heart. Christopher Semsarian, MBBS, PhD, MPH, University of Sydney, and colleagues discuss emerging data on hypertrophic cardiomyopathy and other genetic cardiovascular diseases, with the conclusion that it is probably okay for more athletes with these conditions to participate in recreational and competitive sports than was previously thought – another paradigm shift, according to Dr. Kovacic.

The final article addresses some of the challenges and controversies related to the athlete’s heart, including whether extreme exercise is associated with vulnerability to atrial fibrillation and other arrhythmias, and the impact of gender on the cardiac response to exercise, which can’t be determined now because of a paucity of data on women in sports.

Overall, Dr. Kovacic said, the series makes for “compelling” reading that should encourage readers to embark on their own studies to add to the data and support exercise prescription across the board.

No commercial funding or relevant conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

Chronic lack of exercise – dubbed “exercise deficiency” – is associated with cardiac atrophy, reduced cardiac output and chamber size, and diminished cardiorespiratory fitness (CRF) in a subgroup of patients with heart failure with preserved ejection fraction (HFpEF), researchers say.

Increasing the physical activity levels of these sedentary individuals could be an effective preventive strategy, particularly for those who are younger and middle-aged, they suggest.

Thinking of HFpEF as an exercise deficiency syndrome leading to a small heart “flies in the face of decades of cardiovascular teaching, because traditionally, we’ve thought of heart failure as the big floppy heart,” Andre La Gerche, MBBS, PhD, of the Baker Heart and Diabetes Institute, Melbourne, told this news organization.

“While it is true that some people with HFpEF have thick, stiff hearts, we propose that another subset has a normal heart, except it’s small because it’s been underexercised,” he said.

The article, published online  as part of a Focus Seminar series in the Journal of the American College of Cardiology, has “gone viral on social media,” Jason C. Kovacic, MBBS, PhD, of the Victor Chang Cardiac Research Institute, Darlinghurst, Australia, told this news organization.

Dr. Kovacic is a JACC section editor and the coordinating and senior author of the series, which covers other issues surrounding physical activity, both in athletes and the general public.
 

‘Coin-dropping moment’

To support their hypothesis that HFpEF is an exercise deficiency in certain patients, Dr. La Gerche and colleagues conducted a literature review that highlights the following points:

• There is a strong association between physical activity and both CRF and heart function.
• Exercise deficiency is a major risk factor for HFpEF in a subset of patients.
• Increasing physical activity is associated with greater cardiac mass, stroke volumes, cardiac output, and peak oxygen consumption.
• Physical inactivity leads to loss of heart muscle, reduced output and chamber size, and less ability to improve cardiac performance with exercise.
• Aging results in a smaller, stiffer heart; however, this effect is mitigated by regular exercise.
• Individuals who are sedentary throughout life cannot attenuate age-related reductions in heart size and have increasing chamber stiffness.

“When we explain it, it’s like a coin-dropping moment, because it’s actually a really simple concept,” Dr. La Gerche said. “A small heart has a small stroke volume. A patient with a small heart with a maximal stroke volume of 60 mL can generate a cardiac output of 9 L/min at a heart rate of 150 beats/min during exercise – an output that just isn’t enough. It’s like trying to drive a truck with a 50cc motorbike engine.”

“Plus,” Dr. La Gerche added, “exercise deficiency also sets the stage for comorbidities such as obesity, diabetes, and high blood pressure, all of which can ultimately lead to HFpEF.”

Considering HFpEF as an exercise deficiency syndrome has two clinical implications, Dr. La Gerche said. “First, it helps us understand the condition and diagnose more cases. For example, I think practitioners will start to recognize that breathlessness in some of their patients is associated with a small heart.”

“Second,” he said, “if it’s an exercise deficiency syndrome, the treatment is exercise. For most people, that means exercising regularly before the age of 60 to prevent HFpEF, because studies have found that after the age of 60, the heart is a bit fixed and harder to remodel. That doesn’t mean you shouldn’t try after 60 or that you won’t get benefit. But the real sweet spot is in middle age and younger.”
 

The bigger picture

The JACC Focus Seminar series starts with an article that underscores the benefits of regular physical activity. “The key is getting our patients to meet the guidelines: 150 to 300 minutes of moderate intensity exercise per week, or 75 to 250 minutes of vigorous activity per week,” Dr. Kovacic emphasized.

“Yes, we can give a statin to lower cholesterol. Yes, we can give a blood pressure medication to lower blood pressure. But when you prescribe exercise, you impact patients’ blood pressure, their cholesterol, their weight, their sense of well-being,” he said. “It cuts across so many different aspects of people’s lives that it’s important to underscore the value of exercise to everybody.”

That includes physicians, he affirmed. “It behooves all physicians to be leading by example. I would encourage those who are overweight or aren’t exercising as much as they should be to make the time to be healthy and to exercise. If you don’t, then bad health will force you to make the time to deal with bad health issues.”

Other articles in the series deal with the athlete’s heart. Christopher Semsarian, MBBS, PhD, MPH, University of Sydney, and colleagues discuss emerging data on hypertrophic cardiomyopathy and other genetic cardiovascular diseases, with the conclusion that it is probably okay for more athletes with these conditions to participate in recreational and competitive sports than was previously thought – another paradigm shift, according to Dr. Kovacic.

The final article addresses some of the challenges and controversies related to the athlete’s heart, including whether extreme exercise is associated with vulnerability to atrial fibrillation and other arrhythmias, and the impact of gender on the cardiac response to exercise, which can’t be determined now because of a paucity of data on women in sports.

Overall, Dr. Kovacic said, the series makes for “compelling” reading that should encourage readers to embark on their own studies to add to the data and support exercise prescription across the board.

No commercial funding or relevant conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet received 26,500 likes and almost 3,000 retweets. The 400 comments from medical and non–health care personnel ranged from agreeable to contrary to offensive.

Regardless of your opinion on BMI (body mass index), this conversation highlighted that the medical community needs to discuss the limitations of BMI and decide its future.

As a Black woman who is an obesity expert living with the impact of obesity in my own life, I know the emotion that a BMI conversation can evoke. Before emotions hijack the conversation, let’s discuss BMI’s past, present, and future.
 

BMI: From observational measurement to clinical use

Imagine walking into your favorite clothing store where an eager clerk greets you with a shirt to try on. The fit is off, but the clerk insists that the shirt must fit because everyone who’s your height should be able to wear it. This scenario seems ridiculous. But this is how we’ve come to use the BMI. Instead of thinking that people of the same height may be the same size, we declare that they must be the same size.

The idea behind the BMI was conceived in 1832 by Belgian anthropologist and mathematician Adolphe Quetelet, but he didn’t intend for it to be a health measure. Instead, it was simply an observation of how people’s weight changed in proportion to height over their lifetime.

Fast-forward to the 20th century, when insurance companies began using weight as an indicator of health status. Weights were recorded in a “Life Table.” Individual health status was determined on the basis of arbitrary cut-offs for weight on the Life Tables. Furthermore, White men set the “normal” weight standards because they were the primary insurance holders.

In 1972, Dr. Ancel Keys, a physician and leading expert in body composition at the time, cried foul on this practice and sought to standardize the use of weight as a health indicator. Dr. Keys used Quetelet’s calculation and termed it the Body Mass Index.

By 1985, the U.S. National Institutes of Health and the World Health Organization adopted the BMI. By the 21st century, BMI had become widely used in clinical settings. For example, the Centers for Medicare & Medicaid Services adopted BMI as a quality-of-care measure, placing even more pressure on clinicians to use BMI as a health screening tool.
 

BMI as a tool to diagnose obesity

We can’t discuss BMI without discussing the disease of obesity. BMI is the most widely used tool to diagnose obesity. In the United States, one-third of Americans meet the criteria for obesity. Another one-third are at risk for obesity.

Compared with BMI’s relatively quick acceptance into clinical practice, however, obesity was only recently recognized as a disease.

Historically, obesity has been viewed as a lifestyle choice, fueled by misinformation and multiple forms of bias. The historical bias associated with BMI and discrimination has led some public health officials and scholars to dismiss the use of BMI or fail to recognize obesity as disease.

This is a dangerous conclusion, because it comes to the detriment of the very people disproportionately impacted by obesity-related health disparities.

Furthermore, weight bias continues to prevent people living with obesity from receiving insurance coverage for life-enhancing obesity medications and interventions.
 

Is it time to phase out BMI?

The BMI is intertwined with many forms of bias: age, gender, racial, ethnic, and even weight. Therefore, it is time to phase out BMI. However, phasing out BMI is complex and will take time, given that:

• Obesity is still a relatively “young” disease. 2023 marks the 10th anniversary of obesity’s recognition as a disease by the American Medical Association. Currently, BMI is the most widely used tool to diagnose obesity. Tools such as waist circumference, body composition, and metabolic health assessment will need to replace the BMI. Shifting from BMI emphasizes that obesity is more than a number on the scale. Obesity, as defined by the Obesity Medicine Association, is indeed a “chronic, relapsing, multi-factorial, neurobehavioral disease, wherein an increase in body fat promotes adipose tissue dysfunction and abnormal fat mass physical forces, resulting in adverse metabolic, biomechanical, and psychosocial health consequences.”
• Much of our health research is tied to BMI. There have been some shifts in looking at non–weight-related health indicators. However, we need more robust studies evaluating other health indicators beyond weight and BMI. The availability of this data will help eliminate the need for BMI and promote individualized health assessment.
• Current treatment guidelines for obesity medications are based on BMI. (Note: Medications to treat obesity are called “anti-obesity” medications or AOMs. However, given the stigma associated with obesity, I prefer not to use the term “anti-obesity.”) Presently this interferes with long-term obesity treatment. Once BMI is “normal,” many patients lose insurance coverage for their obesity medication, despite needing long-term metabolic support to overcome the compensatory mechanism of weight regain. Obesity is a chronic disease that exists independent of weight status. Therefore, using non-BMI measures will help ensure appropriate lifetime support for obesity.

The preceding are barriers, not impossibilities. In the interim, if BMI is still used in any capacity, the BMI reference chart should be an adjusted BMI chart based on age, race, ethnicity, biological sex, and obesity-related conditions. Furthermore, BMI isn’t the sole determining factor of health status.

Instead, an “abnormal” BMI should initiate conversation and further testing, if needed, to determine an individual’s health. For example, compare two people of the same height with different BMIs and lifestyles. Current studies support that a person flagged as having a high adjusted BMI but practicing a healthy lifestyle and having no metabolic diseases is less at risk than a person with a “normal” BMI but high waist circumference and an unhealthy lifestyle.

Regardless of your personal feelings, the facts are clear. Technology empowers us with better tools than BMI to determine health status. Therefore, it’s not a matter of if we will stop using BMI but when.

Sylvia Gonsahn-Bollie, MD, DipABOM, is an integrative obesity specialist who specializes in individualized solutions for emotional and biological overeating. Connect with her at www.embraceyouweightloss.com or on Instagram @embraceyoumd. Her bestselling book, “Embrace You: Your Guide to Transforming Weight Loss Misconceptions Into Lifelong Wellness,” is Healthline.com’s Best Overall Weight Loss Book 2022 and one of Livestrong.com’s picks for the 8 Best Weight-Loss Books to Read in 2022.

A version of this article first appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet received 26,500 likes and almost 3,000 retweets. The 400 comments from medical and non–health care personnel ranged from agreeable to contrary to offensive.

Regardless of your opinion on BMI (body mass index), this conversation highlighted that the medical community needs to discuss the limitations of BMI and decide its future.

As a Black woman who is an obesity expert living with the impact of obesity in my own life, I know the emotion that a BMI conversation can evoke. Before emotions hijack the conversation, let’s discuss BMI’s past, present, and future.
 

BMI: From observational measurement to clinical use

Imagine walking into your favorite clothing store where an eager clerk greets you with a shirt to try on. The fit is off, but the clerk insists that the shirt must fit because everyone who’s your height should be able to wear it. This scenario seems ridiculous. But this is how we’ve come to use the BMI. Instead of thinking that people of the same height may be the same size, we declare that they must be the same size.

The idea behind the BMI was conceived in 1832 by Belgian anthropologist and mathematician Adolphe Quetelet, but he didn’t intend for it to be a health measure. Instead, it was simply an observation of how people’s weight changed in proportion to height over their lifetime.

Fast-forward to the 20th century, when insurance companies began using weight as an indicator of health status. Weights were recorded in a “Life Table.” Individual health status was determined on the basis of arbitrary cut-offs for weight on the Life Tables. Furthermore, White men set the “normal” weight standards because they were the primary insurance holders.

In 1972, Dr. Ancel Keys, a physician and leading expert in body composition at the time, cried foul on this practice and sought to standardize the use of weight as a health indicator. Dr. Keys used Quetelet’s calculation and termed it the Body Mass Index.

By 1985, the U.S. National Institutes of Health and the World Health Organization adopted the BMI. By the 21st century, BMI had become widely used in clinical settings. For example, the Centers for Medicare & Medicaid Services adopted BMI as a quality-of-care measure, placing even more pressure on clinicians to use BMI as a health screening tool.
 

BMI as a tool to diagnose obesity

We can’t discuss BMI without discussing the disease of obesity. BMI is the most widely used tool to diagnose obesity. In the United States, one-third of Americans meet the criteria for obesity. Another one-third are at risk for obesity.

Compared with BMI’s relatively quick acceptance into clinical practice, however, obesity was only recently recognized as a disease.

Historically, obesity has been viewed as a lifestyle choice, fueled by misinformation and multiple forms of bias. The historical bias associated with BMI and discrimination has led some public health officials and scholars to dismiss the use of BMI or fail to recognize obesity as disease.

This is a dangerous conclusion, because it comes to the detriment of the very people disproportionately impacted by obesity-related health disparities.

Furthermore, weight bias continues to prevent people living with obesity from receiving insurance coverage for life-enhancing obesity medications and interventions.
 

Is it time to phase out BMI?

The BMI is intertwined with many forms of bias: age, gender, racial, ethnic, and even weight. Therefore, it is time to phase out BMI. However, phasing out BMI is complex and will take time, given that:

• Obesity is still a relatively “young” disease. 2023 marks the 10th anniversary of obesity’s recognition as a disease by the American Medical Association. Currently, BMI is the most widely used tool to diagnose obesity. Tools such as waist circumference, body composition, and metabolic health assessment will need to replace the BMI. Shifting from BMI emphasizes that obesity is more than a number on the scale. Obesity, as defined by the Obesity Medicine Association, is indeed a “chronic, relapsing, multi-factorial, neurobehavioral disease, wherein an increase in body fat promotes adipose tissue dysfunction and abnormal fat mass physical forces, resulting in adverse metabolic, biomechanical, and psychosocial health consequences.”
• Much of our health research is tied to BMI. There have been some shifts in looking at non–weight-related health indicators. However, we need more robust studies evaluating other health indicators beyond weight and BMI. The availability of this data will help eliminate the need for BMI and promote individualized health assessment.
• Current treatment guidelines for obesity medications are based on BMI. (Note: Medications to treat obesity are called “anti-obesity” medications or AOMs. However, given the stigma associated with obesity, I prefer not to use the term “anti-obesity.”) Presently this interferes with long-term obesity treatment. Once BMI is “normal,” many patients lose insurance coverage for their obesity medication, despite needing long-term metabolic support to overcome the compensatory mechanism of weight regain. Obesity is a chronic disease that exists independent of weight status. Therefore, using non-BMI measures will help ensure appropriate lifetime support for obesity.

The preceding are barriers, not impossibilities. In the interim, if BMI is still used in any capacity, the BMI reference chart should be an adjusted BMI chart based on age, race, ethnicity, biological sex, and obesity-related conditions. Furthermore, BMI isn’t the sole determining factor of health status.

Instead, an “abnormal” BMI should initiate conversation and further testing, if needed, to determine an individual’s health. For example, compare two people of the same height with different BMIs and lifestyles. Current studies support that a person flagged as having a high adjusted BMI but practicing a healthy lifestyle and having no metabolic diseases is less at risk than a person with a “normal” BMI but high waist circumference and an unhealthy lifestyle.

Regardless of your personal feelings, the facts are clear. Technology empowers us with better tools than BMI to determine health status. Therefore, it’s not a matter of if we will stop using BMI but when.

Sylvia Gonsahn-Bollie, MD, DipABOM, is an integrative obesity specialist who specializes in individualized solutions for emotional and biological overeating. Connect with her at www.embraceyouweightloss.com or on Instagram @embraceyoumd. Her bestselling book, “Embrace You: Your Guide to Transforming Weight Loss Misconceptions Into Lifelong Wellness,” is Healthline.com’s Best Overall Weight Loss Book 2022 and one of Livestrong.com’s picks for the 8 Best Weight-Loss Books to Read in 2022.

A version of this article first appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet received 26,500 likes and almost 3,000 retweets. The 400 comments from medical and non–health care personnel ranged from agreeable to contrary to offensive.

Regardless of your opinion on BMI (body mass index), this conversation highlighted that the medical community needs to discuss the limitations of BMI and decide its future.

As a Black woman who is an obesity expert living with the impact of obesity in my own life, I know the emotion that a BMI conversation can evoke. Before emotions hijack the conversation, let’s discuss BMI’s past, present, and future.
 

BMI: From observational measurement to clinical use

Imagine walking into your favorite clothing store where an eager clerk greets you with a shirt to try on. The fit is off, but the clerk insists that the shirt must fit because everyone who’s your height should be able to wear it. This scenario seems ridiculous. But this is how we’ve come to use the BMI. Instead of thinking that people of the same height may be the same size, we declare that they must be the same size.

The idea behind the BMI was conceived in 1832 by Belgian anthropologist and mathematician Adolphe Quetelet, but he didn’t intend for it to be a health measure. Instead, it was simply an observation of how people’s weight changed in proportion to height over their lifetime.

Fast-forward to the 20th century, when insurance companies began using weight as an indicator of health status. Weights were recorded in a “Life Table.” Individual health status was determined on the basis of arbitrary cut-offs for weight on the Life Tables. Furthermore, White men set the “normal” weight standards because they were the primary insurance holders.

In 1972, Dr. Ancel Keys, a physician and leading expert in body composition at the time, cried foul on this practice and sought to standardize the use of weight as a health indicator. Dr. Keys used Quetelet’s calculation and termed it the Body Mass Index.

By 1985, the U.S. National Institutes of Health and the World Health Organization adopted the BMI. By the 21st century, BMI had become widely used in clinical settings. For example, the Centers for Medicare & Medicaid Services adopted BMI as a quality-of-care measure, placing even more pressure on clinicians to use BMI as a health screening tool.
 

BMI as a tool to diagnose obesity

We can’t discuss BMI without discussing the disease of obesity. BMI is the most widely used tool to diagnose obesity. In the United States, one-third of Americans meet the criteria for obesity. Another one-third are at risk for obesity.

Compared with BMI’s relatively quick acceptance into clinical practice, however, obesity was only recently recognized as a disease.

Historically, obesity has been viewed as a lifestyle choice, fueled by misinformation and multiple forms of bias. The historical bias associated with BMI and discrimination has led some public health officials and scholars to dismiss the use of BMI or fail to recognize obesity as disease.

This is a dangerous conclusion, because it comes to the detriment of the very people disproportionately impacted by obesity-related health disparities.

Furthermore, weight bias continues to prevent people living with obesity from receiving insurance coverage for life-enhancing obesity medications and interventions.
 

Is it time to phase out BMI?

The BMI is intertwined with many forms of bias: age, gender, racial, ethnic, and even weight. Therefore, it is time to phase out BMI. However, phasing out BMI is complex and will take time, given that:

• Obesity is still a relatively “young” disease. 2023 marks the 10th anniversary of obesity’s recognition as a disease by the American Medical Association. Currently, BMI is the most widely used tool to diagnose obesity. Tools such as waist circumference, body composition, and metabolic health assessment will need to replace the BMI. Shifting from BMI emphasizes that obesity is more than a number on the scale. Obesity, as defined by the Obesity Medicine Association, is indeed a “chronic, relapsing, multi-factorial, neurobehavioral disease, wherein an increase in body fat promotes adipose tissue dysfunction and abnormal fat mass physical forces, resulting in adverse metabolic, biomechanical, and psychosocial health consequences.”
• Much of our health research is tied to BMI. There have been some shifts in looking at non–weight-related health indicators. However, we need more robust studies evaluating other health indicators beyond weight and BMI. The availability of this data will help eliminate the need for BMI and promote individualized health assessment.
• Current treatment guidelines for obesity medications are based on BMI. (Note: Medications to treat obesity are called “anti-obesity” medications or AOMs. However, given the stigma associated with obesity, I prefer not to use the term “anti-obesity.”) Presently this interferes with long-term obesity treatment. Once BMI is “normal,” many patients lose insurance coverage for their obesity medication, despite needing long-term metabolic support to overcome the compensatory mechanism of weight regain. Obesity is a chronic disease that exists independent of weight status. Therefore, using non-BMI measures will help ensure appropriate lifetime support for obesity.

The preceding are barriers, not impossibilities. In the interim, if BMI is still used in any capacity, the BMI reference chart should be an adjusted BMI chart based on age, race, ethnicity, biological sex, and obesity-related conditions. Furthermore, BMI isn’t the sole determining factor of health status.

Instead, an “abnormal” BMI should initiate conversation and further testing, if needed, to determine an individual’s health. For example, compare two people of the same height with different BMIs and lifestyles. Current studies support that a person flagged as having a high adjusted BMI but practicing a healthy lifestyle and having no metabolic diseases is less at risk than a person with a “normal” BMI but high waist circumference and an unhealthy lifestyle.

Regardless of your personal feelings, the facts are clear. Technology empowers us with better tools than BMI to determine health status. Therefore, it’s not a matter of if we will stop using BMI but when.

Sylvia Gonsahn-Bollie, MD, DipABOM, is an integrative obesity specialist who specializes in individualized solutions for emotional and biological overeating. Connect with her at www.embraceyouweightloss.com or on Instagram @embraceyoumd. Her bestselling book, “Embrace You: Your Guide to Transforming Weight Loss Misconceptions Into Lifelong Wellness,” is Healthline.com’s Best Overall Weight Loss Book 2022 and one of Livestrong.com’s picks for the 8 Best Weight-Loss Books to Read in 2022.

A version of this article first appeared on Medscape.com.

The old saying ‘breakfast like a king, lunch like a prince, and dine like a pauper’ is wrong, at least in terms of weight control, according to a new study, published in Cell Metabolism, from the University of Aberdeen. The idea that ‘front-loading’ calories early in the day might help dieting attempts was based on the belief that consuming the bulk of daily calories in the morning optimizes weight loss by burning calories more efficiently and quickly.

“There are a lot of myths surrounding the timing of eating and how it might influence either body weight or health,” said senior author Alexandra Johnstone, PhD, a researcher at the Rowett Institute, University of Aberdeen, who specializes in appetite control. “This has been driven largely by the circadian rhythm field. But we in the nutrition field have wondered how this could be possible. Where would the energy go? We decided to take a closer look at how time of day interacts with metabolism.”

Her team undertook a randomized crossover trial of 30 overweight and obese subjects recruited via social media ads. Participants – 16 men and 14 women – had a mean age of 51 years, and body mass index of 27-42 kg/ m² but were otherwise healthy. The researchers compared two calorie-restricted but isoenergetic weight loss diets: morning-loaded calories with 45% of intake at breakfast, 35% at lunch, and 20% at dinner, and evening-loaded calories with the inverse proportions of 20%, 35%, and 45% at breakfast, lunch, and dinner, respectively.

Each diet was followed for 4 weeks, with a controlled baseline diet in which calories were balanced throughout the day provided for 1 week at the outset and during a 1-week washout period between the two intervention diets. Each person’s calorie intake was fixed, referenced to their individual measured resting metabolic rate, to assess the effect on weight loss and energy expenditure of meal timing under isoenergetic intake. Both diets were designed to provide the same nutrient composition of 30% protein, 35% carbohydrate, and 35% fat.

All food and beverages were provided, “making this the most rigorously controlled study to assess timing of eating in humans to date,” the team said, “with the aim of accounting for all aspects of energy balance.”
 

No optimum time to eat for weight loss

Results showed that both diets resulted in significant weight reduction at the end of each dietary intervention period, with subjects losing an average of just over 3 kg during each of the 4-week periods. However, there was no difference in weight loss between the morning-loaded and evening-loaded diets.

The relative size of breakfast and dinner – whether a person eats the largest meal early or late in the day – does not have an impact on metabolism, the team said. This challenges previous studies that have suggested that “evening eaters” – now a majority of the U.K. population – have a greater likelihood of gaining weight and greater difficulty in losing it.

“Participants were provided with all their meals for 8 weeks and their energy expenditure and body composition monitored for changes, using gold standard techniques at the Rowett Institute,” Dr. Johnstone said. “The same number of calories was consumed by volunteers at different times of the day, with energy expenditure measures using analysis of urine.

“This study is important because it challenges the previously held belief that eating at different times of the day leads to differential energy expenditure. The research shows that under weight loss conditions there is no optimum time to eat in order to manage weight, and that change in body weight is determined by energy balance.”
 

Meal timing reduces hunger but does not affect weight loss

However, the research also revealed that when subjects consumed the morning-loaded (big breakfast) diet, they reported feeling significantly less hungry later in the day. “Morning-loaded intake may assist with compliance to weight loss regime, through a greater suppression of appetite,” the authors said, adding that this “could foster easier weight loss in the real world.”

“The participants reported that their appetites were better controlled on the days they ate a bigger breakfast and that they felt satiated throughout the rest of the day,” Dr. Johnstone said.

“We know that appetite control is important to achieve weight loss, and our study suggests that those consuming the most calories in the morning felt less hungry, in contrast to when they consumed more calories in the evening period.

“This could be quite useful in the real-world environment, versus in the research setting that we were working in.”
 

‘Major finding’ for chrono-nutrition

Coauthor Jonathan Johnston, PhD, professor of chronobiology and integrative physiology at the University of Surrey, said: “This is a major finding for the field of meal timing (‘chrono-nutrition’) research. Many aspects of human biology change across the day and we are starting to understand how this interacts with food intake.

“Our new research shows that, in weight loss conditions, the size of breakfast and dinner regulates our appetite but not the total amount of energy that our bodies use,” Dr. Johnston said. “We plan to build upon this research to improve the health of the general population and specific groups, e.g, shift workers.”

It’s possible that shift workers could have different metabolic responses, due to the disruption of their circadian rhythms, the team said. Dr. Johnstone noted that this type of experiment could also be applied to the study of intermittent fasting (time-restricted eating), to help determine the best time of day for people to consume their calories.

“One thing that’s important to note is that when it comes to timing and dieting, there is not likely going to be one diet that fits all,” she concluded. “Figuring this out is going to be the future of diet studies, but it’s something that’s very difficult to measure.”
 

Great variability in individual responses to diets

Commenting on the study, Helena Gibson-Moore, RNutr (PH), nutrition scientist and spokesperson for the British Nutrition Foundation, said: “With about two in three adults in the UK either overweight or obese, it’s important that research continues to look into effective strategies for people to lose weight.” She described the study as “interesting,” and a challenge to previous research supporting “front-loading” calories earlier in the day as more effective for weight loss.

“However, whilst in this study there were no differences in weight loss, participants did report significantly lower hunger when eating a higher proportion of calories in the morning,” she said. “Therefore, for people who prefer having a big breakfast this may still be a useful way to help compliance to a weight loss regime through feeling less hungry in the evening, which in turn may lead to a reduced calorie intake later in the day.

“However, research has shown that as individuals we respond to diets in different ways. For example, a study comparing weight loss after a healthy low-fat diet vs. a healthy low-carbohydrate diet showed similar mean weight loss at 12 months, but there was large variability in the personal responses to each diet with some participants actually gaining weight.

“Differences in individual responses to dietary exposures has led to research into a personalized nutrition approach which requires collection of personal data and then provides individualized advice based on this.” Research has suggested that personalized dietary and physical activity advice was more effective than conventional generalized advice, she said.

“The bottom line for effective weight loss is that it is clear there is ‘no one size fits all’ approach and different weight loss strategies can work for different people but finding effective strategies for long-term sustainability of weight loss continues to be the major challenge. There are many factors that impact successful weight management and for some people it may not just be what we eat that is important, but also how and when we eat.”

This study was funded by the Medical Research Council and the Scottish Government, Rural and Environment Science and Analytical Services Division.

A version of this article first appeared on Medscape.co.uk.

The old saying ‘breakfast like a king, lunch like a prince, and dine like a pauper’ is wrong, at least in terms of weight control, according to a new study, published in Cell Metabolism, from the University of Aberdeen. The idea that ‘front-loading’ calories early in the day might help dieting attempts was based on the belief that consuming the bulk of daily calories in the morning optimizes weight loss by burning calories more efficiently and quickly.

“There are a lot of myths surrounding the timing of eating and how it might influence either body weight or health,” said senior author Alexandra Johnstone, PhD, a researcher at the Rowett Institute, University of Aberdeen, who specializes in appetite control. “This has been driven largely by the circadian rhythm field. But we in the nutrition field have wondered how this could be possible. Where would the energy go? We decided to take a closer look at how time of day interacts with metabolism.”

Her team undertook a randomized crossover trial of 30 overweight and obese subjects recruited via social media ads. Participants – 16 men and 14 women – had a mean age of 51 years, and body mass index of 27-42 kg/ m² but were otherwise healthy. The researchers compared two calorie-restricted but isoenergetic weight loss diets: morning-loaded calories with 45% of intake at breakfast, 35% at lunch, and 20% at dinner, and evening-loaded calories with the inverse proportions of 20%, 35%, and 45% at breakfast, lunch, and dinner, respectively.

Each diet was followed for 4 weeks, with a controlled baseline diet in which calories were balanced throughout the day provided for 1 week at the outset and during a 1-week washout period between the two intervention diets. Each person’s calorie intake was fixed, referenced to their individual measured resting metabolic rate, to assess the effect on weight loss and energy expenditure of meal timing under isoenergetic intake. Both diets were designed to provide the same nutrient composition of 30% protein, 35% carbohydrate, and 35% fat.

All food and beverages were provided, “making this the most rigorously controlled study to assess timing of eating in humans to date,” the team said, “with the aim of accounting for all aspects of energy balance.”
 

No optimum time to eat for weight loss

Results showed that both diets resulted in significant weight reduction at the end of each dietary intervention period, with subjects losing an average of just over 3 kg during each of the 4-week periods. However, there was no difference in weight loss between the morning-loaded and evening-loaded diets.

The relative size of breakfast and dinner – whether a person eats the largest meal early or late in the day – does not have an impact on metabolism, the team said. This challenges previous studies that have suggested that “evening eaters” – now a majority of the U.K. population – have a greater likelihood of gaining weight and greater difficulty in losing it.

“Participants were provided with all their meals for 8 weeks and their energy expenditure and body composition monitored for changes, using gold standard techniques at the Rowett Institute,” Dr. Johnstone said. “The same number of calories was consumed by volunteers at different times of the day, with energy expenditure measures using analysis of urine.

“This study is important because it challenges the previously held belief that eating at different times of the day leads to differential energy expenditure. The research shows that under weight loss conditions there is no optimum time to eat in order to manage weight, and that change in body weight is determined by energy balance.”
 

Meal timing reduces hunger but does not affect weight loss

However, the research also revealed that when subjects consumed the morning-loaded (big breakfast) diet, they reported feeling significantly less hungry later in the day. “Morning-loaded intake may assist with compliance to weight loss regime, through a greater suppression of appetite,” the authors said, adding that this “could foster easier weight loss in the real world.”

“The participants reported that their appetites were better controlled on the days they ate a bigger breakfast and that they felt satiated throughout the rest of the day,” Dr. Johnstone said.

“We know that appetite control is important to achieve weight loss, and our study suggests that those consuming the most calories in the morning felt less hungry, in contrast to when they consumed more calories in the evening period.

“This could be quite useful in the real-world environment, versus in the research setting that we were working in.”
 

‘Major finding’ for chrono-nutrition

Coauthor Jonathan Johnston, PhD, professor of chronobiology and integrative physiology at the University of Surrey, said: “This is a major finding for the field of meal timing (‘chrono-nutrition’) research. Many aspects of human biology change across the day and we are starting to understand how this interacts with food intake.

“Our new research shows that, in weight loss conditions, the size of breakfast and dinner regulates our appetite but not the total amount of energy that our bodies use,” Dr. Johnston said. “We plan to build upon this research to improve the health of the general population and specific groups, e.g, shift workers.”

It’s possible that shift workers could have different metabolic responses, due to the disruption of their circadian rhythms, the team said. Dr. Johnstone noted that this type of experiment could also be applied to the study of intermittent fasting (time-restricted eating), to help determine the best time of day for people to consume their calories.

“One thing that’s important to note is that when it comes to timing and dieting, there is not likely going to be one diet that fits all,” she concluded. “Figuring this out is going to be the future of diet studies, but it’s something that’s very difficult to measure.”
 

Great variability in individual responses to diets

Commenting on the study, Helena Gibson-Moore, RNutr (PH), nutrition scientist and spokesperson for the British Nutrition Foundation, said: “With about two in three adults in the UK either overweight or obese, it’s important that research continues to look into effective strategies for people to lose weight.” She described the study as “interesting,” and a challenge to previous research supporting “front-loading” calories earlier in the day as more effective for weight loss.

“However, whilst in this study there were no differences in weight loss, participants did report significantly lower hunger when eating a higher proportion of calories in the morning,” she said. “Therefore, for people who prefer having a big breakfast this may still be a useful way to help compliance to a weight loss regime through feeling less hungry in the evening, which in turn may lead to a reduced calorie intake later in the day.

“However, research has shown that as individuals we respond to diets in different ways. For example, a study comparing weight loss after a healthy low-fat diet vs. a healthy low-carbohydrate diet showed similar mean weight loss at 12 months, but there was large variability in the personal responses to each diet with some participants actually gaining weight.

“Differences in individual responses to dietary exposures has led to research into a personalized nutrition approach which requires collection of personal data and then provides individualized advice based on this.” Research has suggested that personalized dietary and physical activity advice was more effective than conventional generalized advice, she said.

“The bottom line for effective weight loss is that it is clear there is ‘no one size fits all’ approach and different weight loss strategies can work for different people but finding effective strategies for long-term sustainability of weight loss continues to be the major challenge. There are many factors that impact successful weight management and for some people it may not just be what we eat that is important, but also how and when we eat.”

This study was funded by the Medical Research Council and the Scottish Government, Rural and Environment Science and Analytical Services Division.

A version of this article first appeared on Medscape.co.uk.

The old saying ‘breakfast like a king, lunch like a prince, and dine like a pauper’ is wrong, at least in terms of weight control, according to a new study, published in Cell Metabolism, from the University of Aberdeen. The idea that ‘front-loading’ calories early in the day might help dieting attempts was based on the belief that consuming the bulk of daily calories in the morning optimizes weight loss by burning calories more efficiently and quickly.

“There are a lot of myths surrounding the timing of eating and how it might influence either body weight or health,” said senior author Alexandra Johnstone, PhD, a researcher at the Rowett Institute, University of Aberdeen, who specializes in appetite control. “This has been driven largely by the circadian rhythm field. But we in the nutrition field have wondered how this could be possible. Where would the energy go? We decided to take a closer look at how time of day interacts with metabolism.”

Her team undertook a randomized crossover trial of 30 overweight and obese subjects recruited via social media ads. Participants – 16 men and 14 women – had a mean age of 51 years, and body mass index of 27-42 kg/ m² but were otherwise healthy. The researchers compared two calorie-restricted but isoenergetic weight loss diets: morning-loaded calories with 45% of intake at breakfast, 35% at lunch, and 20% at dinner, and evening-loaded calories with the inverse proportions of 20%, 35%, and 45% at breakfast, lunch, and dinner, respectively.

Each diet was followed for 4 weeks, with a controlled baseline diet in which calories were balanced throughout the day provided for 1 week at the outset and during a 1-week washout period between the two intervention diets. Each person’s calorie intake was fixed, referenced to their individual measured resting metabolic rate, to assess the effect on weight loss and energy expenditure of meal timing under isoenergetic intake. Both diets were designed to provide the same nutrient composition of 30% protein, 35% carbohydrate, and 35% fat.

All food and beverages were provided, “making this the most rigorously controlled study to assess timing of eating in humans to date,” the team said, “with the aim of accounting for all aspects of energy balance.”
 

No optimum time to eat for weight loss

Results showed that both diets resulted in significant weight reduction at the end of each dietary intervention period, with subjects losing an average of just over 3 kg during each of the 4-week periods. However, there was no difference in weight loss between the morning-loaded and evening-loaded diets.

The relative size of breakfast and dinner – whether a person eats the largest meal early or late in the day – does not have an impact on metabolism, the team said. This challenges previous studies that have suggested that “evening eaters” – now a majority of the U.K. population – have a greater likelihood of gaining weight and greater difficulty in losing it.

“Participants were provided with all their meals for 8 weeks and their energy expenditure and body composition monitored for changes, using gold standard techniques at the Rowett Institute,” Dr. Johnstone said. “The same number of calories was consumed by volunteers at different times of the day, with energy expenditure measures using analysis of urine.

“This study is important because it challenges the previously held belief that eating at different times of the day leads to differential energy expenditure. The research shows that under weight loss conditions there is no optimum time to eat in order to manage weight, and that change in body weight is determined by energy balance.”
 

Meal timing reduces hunger but does not affect weight loss

However, the research also revealed that when subjects consumed the morning-loaded (big breakfast) diet, they reported feeling significantly less hungry later in the day. “Morning-loaded intake may assist with compliance to weight loss regime, through a greater suppression of appetite,” the authors said, adding that this “could foster easier weight loss in the real world.”

“The participants reported that their appetites were better controlled on the days they ate a bigger breakfast and that they felt satiated throughout the rest of the day,” Dr. Johnstone said.

“We know that appetite control is important to achieve weight loss, and our study suggests that those consuming the most calories in the morning felt less hungry, in contrast to when they consumed more calories in the evening period.

“This could be quite useful in the real-world environment, versus in the research setting that we were working in.”
 

‘Major finding’ for chrono-nutrition

Coauthor Jonathan Johnston, PhD, professor of chronobiology and integrative physiology at the University of Surrey, said: “This is a major finding for the field of meal timing (‘chrono-nutrition’) research. Many aspects of human biology change across the day and we are starting to understand how this interacts with food intake.

“Our new research shows that, in weight loss conditions, the size of breakfast and dinner regulates our appetite but not the total amount of energy that our bodies use,” Dr. Johnston said. “We plan to build upon this research to improve the health of the general population and specific groups, e.g, shift workers.”

It’s possible that shift workers could have different metabolic responses, due to the disruption of their circadian rhythms, the team said. Dr. Johnstone noted that this type of experiment could also be applied to the study of intermittent fasting (time-restricted eating), to help determine the best time of day for people to consume their calories.

“One thing that’s important to note is that when it comes to timing and dieting, there is not likely going to be one diet that fits all,” she concluded. “Figuring this out is going to be the future of diet studies, but it’s something that’s very difficult to measure.”
 

Great variability in individual responses to diets

Commenting on the study, Helena Gibson-Moore, RNutr (PH), nutrition scientist and spokesperson for the British Nutrition Foundation, said: “With about two in three adults in the UK either overweight or obese, it’s important that research continues to look into effective strategies for people to lose weight.” She described the study as “interesting,” and a challenge to previous research supporting “front-loading” calories earlier in the day as more effective for weight loss.

“However, whilst in this study there were no differences in weight loss, participants did report significantly lower hunger when eating a higher proportion of calories in the morning,” she said. “Therefore, for people who prefer having a big breakfast this may still be a useful way to help compliance to a weight loss regime through feeling less hungry in the evening, which in turn may lead to a reduced calorie intake later in the day.

“However, research has shown that as individuals we respond to diets in different ways. For example, a study comparing weight loss after a healthy low-fat diet vs. a healthy low-carbohydrate diet showed similar mean weight loss at 12 months, but there was large variability in the personal responses to each diet with some participants actually gaining weight.

“Differences in individual responses to dietary exposures has led to research into a personalized nutrition approach which requires collection of personal data and then provides individualized advice based on this.” Research has suggested that personalized dietary and physical activity advice was more effective than conventional generalized advice, she said.

“The bottom line for effective weight loss is that it is clear there is ‘no one size fits all’ approach and different weight loss strategies can work for different people but finding effective strategies for long-term sustainability of weight loss continues to be the major challenge. There are many factors that impact successful weight management and for some people it may not just be what we eat that is important, but also how and when we eat.”

This study was funded by the Medical Research Council and the Scottish Government, Rural and Environment Science and Analytical Services Division.

A version of this article first appeared on Medscape.co.uk.

Health concerns about the consumption of artificial sweeteners could be strengthened with the publication of a new study linking their intake to increased risk of heart disease and stroke events.

In this latest large-scale, prospective study of French adults, total artificial sweetener intake from all sources was associated with increased risk overall of cardiovascular and cerebrovascular disease.

The study was published online in the BMJ.

The current study differs from those done previously in that it includes artificial sweetener intake from both food and drinks, whereas previous studies have focused mainly on artificial sweetener content of beverages alone.

“Here we have quantified for the first time the global exposure to artificial sweeteners. This is not just beverages but includes the use of tabletop sweeteners, and other foods that include artificial sweeteners such as yogurts and desserts. This is the first time this information has been correlated to risk of heart disease,” senior author Mathilde Touvier, MD, Sorbonne Paris Nord University, told this news organization.

Just over half of the artificial sweetener intake in the study came from drinks, with the rest coming from tabletop sweeteners and foods.

“We included hard cardio- and cerebrovascular clinical endpoints such as a heart attack or stroke, and our results suggest that the amount of artificial sweetener in less than one can of soda could increase the risk of such events,” Dr. Touvier noted.

“This is an important and statistically significant association which shows robustness in all models after adjusting for many other possible confounding factors,” she said.

“There is now mounting evidence correlating artificial sweeteners to weight gain and heart disease,” she concluded. “My advice would be that we all need to try to limit sugar intake, but we should not consider artificial sweeteners as safe alternatives. Rather, we need to try to reduce our need for a sugary taste in our diet.”

But another leading researcher in the field urges caution in interpreting these results.

John Sievenpiper, MD, departments of nutritional sciences and medicine, University of Toronto, commented: “This paper shows the same relationship seen by many other large prospective cohorts which model the intake of artificial sweeteners as baseline or prevalent exposures.

“These observations are well recognized to be at high risk of residual confounding from behavior clustering and reverse causality in which being at risk for cardiovascular disease causes people to consume artificial sweeteners as a strategy to mitigate this risk as opposed to the other way around.”
 

Risk increased by 9%

The current study included 103,388 French adults from the NutriNet-Sante cohort, of whom 37.1% reported consumption of artificial sweeteners. The sweeteners assessed were mainly aspartame (58% of sweetener intake), acesulfame potassium (29%), and sucralose (10%), with the other 3% made up of various other sweeteners including cyclamates and saccharin.

Results showed that over an average 9 years of follow-up, artificial sweetener intake was associated with a 9% increased risk of cardiovascular or cerebrovascular events, including myocardial infarction, acute coronary syndrome, angioplasty, angina, stroke, or transient ischemic attack, with a hazard ratio of 1.09 (95% confidence interval, 1.01-1.18; P = .03).

The average intake of artificial sweeteners among those who reported consuming them was 42.46 mg/day, which corresponds to approximately one individual packet of tabletop sweetener or 100 mL of diet soda.

“We don’t have enough evidence to work out an amount of artificial sweetener that is harmful, but we did show a dose-effect association, with a higher risk of cardiovascular events with higher consumption,” Dr. Touvier said.

“Higher consumption in this study was a mean of 77 mg/day artificial sweetener, which is about 200 mL of soda – just a bit less than one standard can of soda,” she added.

The absolute incidence rate of cardiovascular or cerebrovascular events in higher consumers was 346 per 100,000 person-years vs. 314 per 100,000 person-years in nonconsumers.

Further analysis suggested that aspartame intake was particularly associated with increased risk of cerebrovascular events, while acesulfame potassium and sucralose were associated with increased coronary heart disease risk.
 

Study strengths

Dr. Touvier acknowledged that dietary studies, which generally rely on individuals self-reporting food and drink intake, are always hard to interpret. But she said this study used a more reliable method of dietary assessment, with repeated 24-hour dietary records, which were validated by interviews with a trained dietitian and against blood and urinary biomarkers.

And whereas residual confounding cannot be totally excluded, she pointed out that models were adjusted for a wide range of potential sociodemographic, anthropometric, dietary, and lifestyle confounders.

Dr. Touvier also noted that cases of cardiovascular disease in the first 2 years of follow-up were excluded to minimize the bias caused by individuals who maybe have switched to artificial sweeteners because of a cardiovascular issue.

“While this study has many strengths, it cannot on its own prove a causal relationship between artificial sweetener and increased cardiovascular risk,” she added. “We need health agencies to examine all the literature in the field. This is however another important piece of evidence.”

Dr. Touvier says that although observational studies have their issues, they will form the basis of the evidence on the effects of artificial sweeteners on health.

“Randomized studies in this area can only really look at short-term outcomes such as weight gain or biomarker changes. So, we will have to use observational studies together with experimental research to build the evidence. This is what happened with cigarette smoking and lung cancer. That link was not established by randomized trials, but by the accumulation of observational and experimental data.”
 

Different artificial sweeteners may be better?

Commenting on the study, Kim Williams Sr., MD, University of Louisville (Ky.), pointed out that this study included artificial sweeteners that increase insulin or decrease insulin sensitivity, and that insulin spikes increase obesity, insulin resistance, hypertension, and atherosclerosis.

“There are some safer artificial sweeteners that do not increase insulin much or at all, such as erythritol, yacon root/yacon syrup, stevia root, but they weren’t included in the analysis,” Dr. Williams added.

Dr. Sievenpiper explained that most studies on artificial sweeteners look at their consumption in isolation without considering how they compare to the intake of the sugars that they are intended to replace.

“The comparator matters as no food is consumed in a vacuum,” he said.

To address this, Dr. Sievenpiper and colleagues have recently published a systematic review and meta-analysis of the prospective cohort study evidence that shows if exposure to artificially sweetened beverages is modeled in substitution for sugar-sweetened beverages, then they are associated with less coronary heart disease, cardiovascular mortality, and all-cause mortality.

On the other hand, if exposure to artificially sweetened beverages is compared with water, then no difference in these outcomes was seen.

“These observations are more biologically plausible, robust, and reproducible and agree with the evidence for the effect of artificial sweeteners on intermediate risk factors in randomized trials,” Dr. Sievenpiper notes.

His group has also recently published a review of randomized studies showing that when compared with sugar-sweetened beverages, intake of artificially sweetened beverages was associated with small improvements in body weight and cardiometabolic risk factors without evidence of harm.

“I think the context provided by these studies is important, and taken together, the totality of the evidence suggests that artificial sweeteners are likely to be a useful tool in sugar reduction strategies,” Dr. Sievenpiper concludes.

The current study was funded by the European Research Council under the European Union’s Horizon 2020 research and innovation program, French National Cancer Institute, French Ministry of Health, IdEx Université de Paris Cité, Bettencourt-Schueller Foundation Research Prize 2021. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Health concerns about the consumption of artificial sweeteners could be strengthened with the publication of a new study linking their intake to increased risk of heart disease and stroke events.

In this latest large-scale, prospective study of French adults, total artificial sweetener intake from all sources was associated with increased risk overall of cardiovascular and cerebrovascular disease.

The study was published online in the BMJ.

The current study differs from those done previously in that it includes artificial sweetener intake from both food and drinks, whereas previous studies have focused mainly on artificial sweetener content of beverages alone.

“Here we have quantified for the first time the global exposure to artificial sweeteners. This is not just beverages but includes the use of tabletop sweeteners, and other foods that include artificial sweeteners such as yogurts and desserts. This is the first time this information has been correlated to risk of heart disease,” senior author Mathilde Touvier, MD, Sorbonne Paris Nord University, told this news organization.

Just over half of the artificial sweetener intake in the study came from drinks, with the rest coming from tabletop sweeteners and foods.

“We included hard cardio- and cerebrovascular clinical endpoints such as a heart attack or stroke, and our results suggest that the amount of artificial sweetener in less than one can of soda could increase the risk of such events,” Dr. Touvier noted.

“This is an important and statistically significant association which shows robustness in all models after adjusting for many other possible confounding factors,” she said.

“There is now mounting evidence correlating artificial sweeteners to weight gain and heart disease,” she concluded. “My advice would be that we all need to try to limit sugar intake, but we should not consider artificial sweeteners as safe alternatives. Rather, we need to try to reduce our need for a sugary taste in our diet.”

But another leading researcher in the field urges caution in interpreting these results.

John Sievenpiper, MD, departments of nutritional sciences and medicine, University of Toronto, commented: “This paper shows the same relationship seen by many other large prospective cohorts which model the intake of artificial sweeteners as baseline or prevalent exposures.

“These observations are well recognized to be at high risk of residual confounding from behavior clustering and reverse causality in which being at risk for cardiovascular disease causes people to consume artificial sweeteners as a strategy to mitigate this risk as opposed to the other way around.”
 

Risk increased by 9%

The current study included 103,388 French adults from the NutriNet-Sante cohort, of whom 37.1% reported consumption of artificial sweeteners. The sweeteners assessed were mainly aspartame (58% of sweetener intake), acesulfame potassium (29%), and sucralose (10%), with the other 3% made up of various other sweeteners including cyclamates and saccharin.

Results showed that over an average 9 years of follow-up, artificial sweetener intake was associated with a 9% increased risk of cardiovascular or cerebrovascular events, including myocardial infarction, acute coronary syndrome, angioplasty, angina, stroke, or transient ischemic attack, with a hazard ratio of 1.09 (95% confidence interval, 1.01-1.18; P = .03).

The average intake of artificial sweeteners among those who reported consuming them was 42.46 mg/day, which corresponds to approximately one individual packet of tabletop sweetener or 100 mL of diet soda.

“We don’t have enough evidence to work out an amount of artificial sweetener that is harmful, but we did show a dose-effect association, with a higher risk of cardiovascular events with higher consumption,” Dr. Touvier said.

“Higher consumption in this study was a mean of 77 mg/day artificial sweetener, which is about 200 mL of soda – just a bit less than one standard can of soda,” she added.

The absolute incidence rate of cardiovascular or cerebrovascular events in higher consumers was 346 per 100,000 person-years vs. 314 per 100,000 person-years in nonconsumers.

Further analysis suggested that aspartame intake was particularly associated with increased risk of cerebrovascular events, while acesulfame potassium and sucralose were associated with increased coronary heart disease risk.
 

Study strengths

Dr. Touvier acknowledged that dietary studies, which generally rely on individuals self-reporting food and drink intake, are always hard to interpret. But she said this study used a more reliable method of dietary assessment, with repeated 24-hour dietary records, which were validated by interviews with a trained dietitian and against blood and urinary biomarkers.

And whereas residual confounding cannot be totally excluded, she pointed out that models were adjusted for a wide range of potential sociodemographic, anthropometric, dietary, and lifestyle confounders.

Dr. Touvier also noted that cases of cardiovascular disease in the first 2 years of follow-up were excluded to minimize the bias caused by individuals who maybe have switched to artificial sweeteners because of a cardiovascular issue.

“While this study has many strengths, it cannot on its own prove a causal relationship between artificial sweetener and increased cardiovascular risk,” she added. “We need health agencies to examine all the literature in the field. This is however another important piece of evidence.”

Dr. Touvier says that although observational studies have their issues, they will form the basis of the evidence on the effects of artificial sweeteners on health.

“Randomized studies in this area can only really look at short-term outcomes such as weight gain or biomarker changes. So, we will have to use observational studies together with experimental research to build the evidence. This is what happened with cigarette smoking and lung cancer. That link was not established by randomized trials, but by the accumulation of observational and experimental data.”
 

Different artificial sweeteners may be better?

Commenting on the study, Kim Williams Sr., MD, University of Louisville (Ky.), pointed out that this study included artificial sweeteners that increase insulin or decrease insulin sensitivity, and that insulin spikes increase obesity, insulin resistance, hypertension, and atherosclerosis.

“There are some safer artificial sweeteners that do not increase insulin much or at all, such as erythritol, yacon root/yacon syrup, stevia root, but they weren’t included in the analysis,” Dr. Williams added.

Dr. Sievenpiper explained that most studies on artificial sweeteners look at their consumption in isolation without considering how they compare to the intake of the sugars that they are intended to replace.

“The comparator matters as no food is consumed in a vacuum,” he said.

To address this, Dr. Sievenpiper and colleagues have recently published a systematic review and meta-analysis of the prospective cohort study evidence that shows if exposure to artificially sweetened beverages is modeled in substitution for sugar-sweetened beverages, then they are associated with less coronary heart disease, cardiovascular mortality, and all-cause mortality.

On the other hand, if exposure to artificially sweetened beverages is compared with water, then no difference in these outcomes was seen.

“These observations are more biologically plausible, robust, and reproducible and agree with the evidence for the effect of artificial sweeteners on intermediate risk factors in randomized trials,” Dr. Sievenpiper notes.

His group has also recently published a review of randomized studies showing that when compared with sugar-sweetened beverages, intake of artificially sweetened beverages was associated with small improvements in body weight and cardiometabolic risk factors without evidence of harm.

“I think the context provided by these studies is important, and taken together, the totality of the evidence suggests that artificial sweeteners are likely to be a useful tool in sugar reduction strategies,” Dr. Sievenpiper concludes.

The current study was funded by the European Research Council under the European Union’s Horizon 2020 research and innovation program, French National Cancer Institute, French Ministry of Health, IdEx Université de Paris Cité, Bettencourt-Schueller Foundation Research Prize 2021. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Health concerns about the consumption of artificial sweeteners could be strengthened with the publication of a new study linking their intake to increased risk of heart disease and stroke events.

In this latest large-scale, prospective study of French adults, total artificial sweetener intake from all sources was associated with increased risk overall of cardiovascular and cerebrovascular disease.

The study was published online in the BMJ.

The current study differs from those done previously in that it includes artificial sweetener intake from both food and drinks, whereas previous studies have focused mainly on artificial sweetener content of beverages alone.

“Here we have quantified for the first time the global exposure to artificial sweeteners. This is not just beverages but includes the use of tabletop sweeteners, and other foods that include artificial sweeteners such as yogurts and desserts. This is the first time this information has been correlated to risk of heart disease,” senior author Mathilde Touvier, MD, Sorbonne Paris Nord University, told this news organization.

Just over half of the artificial sweetener intake in the study came from drinks, with the rest coming from tabletop sweeteners and foods.

“We included hard cardio- and cerebrovascular clinical endpoints such as a heart attack or stroke, and our results suggest that the amount of artificial sweetener in less than one can of soda could increase the risk of such events,” Dr. Touvier noted.

“This is an important and statistically significant association which shows robustness in all models after adjusting for many other possible confounding factors,” she said.

“There is now mounting evidence correlating artificial sweeteners to weight gain and heart disease,” she concluded. “My advice would be that we all need to try to limit sugar intake, but we should not consider artificial sweeteners as safe alternatives. Rather, we need to try to reduce our need for a sugary taste in our diet.”

But another leading researcher in the field urges caution in interpreting these results.

John Sievenpiper, MD, departments of nutritional sciences and medicine, University of Toronto, commented: “This paper shows the same relationship seen by many other large prospective cohorts which model the intake of artificial sweeteners as baseline or prevalent exposures.

“These observations are well recognized to be at high risk of residual confounding from behavior clustering and reverse causality in which being at risk for cardiovascular disease causes people to consume artificial sweeteners as a strategy to mitigate this risk as opposed to the other way around.”
 

Risk increased by 9%

The current study included 103,388 French adults from the NutriNet-Sante cohort, of whom 37.1% reported consumption of artificial sweeteners. The sweeteners assessed were mainly aspartame (58% of sweetener intake), acesulfame potassium (29%), and sucralose (10%), with the other 3% made up of various other sweeteners including cyclamates and saccharin.

Results showed that over an average 9 years of follow-up, artificial sweetener intake was associated with a 9% increased risk of cardiovascular or cerebrovascular events, including myocardial infarction, acute coronary syndrome, angioplasty, angina, stroke, or transient ischemic attack, with a hazard ratio of 1.09 (95% confidence interval, 1.01-1.18; P = .03).

The average intake of artificial sweeteners among those who reported consuming them was 42.46 mg/day, which corresponds to approximately one individual packet of tabletop sweetener or 100 mL of diet soda.

“We don’t have enough evidence to work out an amount of artificial sweetener that is harmful, but we did show a dose-effect association, with a higher risk of cardiovascular events with higher consumption,” Dr. Touvier said.

“Higher consumption in this study was a mean of 77 mg/day artificial sweetener, which is about 200 mL of soda – just a bit less than one standard can of soda,” she added.

The absolute incidence rate of cardiovascular or cerebrovascular events in higher consumers was 346 per 100,000 person-years vs. 314 per 100,000 person-years in nonconsumers.

Further analysis suggested that aspartame intake was particularly associated with increased risk of cerebrovascular events, while acesulfame potassium and sucralose were associated with increased coronary heart disease risk.
 

Study strengths

Dr. Touvier acknowledged that dietary studies, which generally rely on individuals self-reporting food and drink intake, are always hard to interpret. But she said this study used a more reliable method of dietary assessment, with repeated 24-hour dietary records, which were validated by interviews with a trained dietitian and against blood and urinary biomarkers.

And whereas residual confounding cannot be totally excluded, she pointed out that models were adjusted for a wide range of potential sociodemographic, anthropometric, dietary, and lifestyle confounders.

Dr. Touvier also noted that cases of cardiovascular disease in the first 2 years of follow-up were excluded to minimize the bias caused by individuals who maybe have switched to artificial sweeteners because of a cardiovascular issue.

“While this study has many strengths, it cannot on its own prove a causal relationship between artificial sweetener and increased cardiovascular risk,” she added. “We need health agencies to examine all the literature in the field. This is however another important piece of evidence.”

Dr. Touvier says that although observational studies have their issues, they will form the basis of the evidence on the effects of artificial sweeteners on health.

“Randomized studies in this area can only really look at short-term outcomes such as weight gain or biomarker changes. So, we will have to use observational studies together with experimental research to build the evidence. This is what happened with cigarette smoking and lung cancer. That link was not established by randomized trials, but by the accumulation of observational and experimental data.”
 

Different artificial sweeteners may be better?

Commenting on the study, Kim Williams Sr., MD, University of Louisville (Ky.), pointed out that this study included artificial sweeteners that increase insulin or decrease insulin sensitivity, and that insulin spikes increase obesity, insulin resistance, hypertension, and atherosclerosis.

“There are some safer artificial sweeteners that do not increase insulin much or at all, such as erythritol, yacon root/yacon syrup, stevia root, but they weren’t included in the analysis,” Dr. Williams added.

Dr. Sievenpiper explained that most studies on artificial sweeteners look at their consumption in isolation without considering how they compare to the intake of the sugars that they are intended to replace.

“The comparator matters as no food is consumed in a vacuum,” he said.

To address this, Dr. Sievenpiper and colleagues have recently published a systematic review and meta-analysis of the prospective cohort study evidence that shows if exposure to artificially sweetened beverages is modeled in substitution for sugar-sweetened beverages, then they are associated with less coronary heart disease, cardiovascular mortality, and all-cause mortality.

On the other hand, if exposure to artificially sweetened beverages is compared with water, then no difference in these outcomes was seen.

“These observations are more biologically plausible, robust, and reproducible and agree with the evidence for the effect of artificial sweeteners on intermediate risk factors in randomized trials,” Dr. Sievenpiper notes.

His group has also recently published a review of randomized studies showing that when compared with sugar-sweetened beverages, intake of artificially sweetened beverages was associated with small improvements in body weight and cardiometabolic risk factors without evidence of harm.

“I think the context provided by these studies is important, and taken together, the totality of the evidence suggests that artificial sweeteners are likely to be a useful tool in sugar reduction strategies,” Dr. Sievenpiper concludes.

The current study was funded by the European Research Council under the European Union’s Horizon 2020 research and innovation program, French National Cancer Institute, French Ministry of Health, IdEx Université de Paris Cité, Bettencourt-Schueller Foundation Research Prize 2021. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.