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Performing any level of leisure-time physical activity reduces the risk for neuropathy and nephropathy in individuals with type 2 diabetes, by between one-fifth and one third, although the impact on retinopathy is weaker, reveals a cohort study of U.K. individuals.

The research, based on data from more than 18,000 participants in the U.K. Biobank, suggests that the minimal level of self-reported activity to reduce the risk for both neuropathy and nephropathy may be the equivalent of less than 1.5 hours of walking per week.

The results are “encouraging and reassuring for both physicians and patients,” lead author Frederik P.B. Kristensen, MSc, PhD student, department of clinical epidemiology, Aarhus (Denmark) University, said in an interview.

Ariel Skelley/Getty Images

Impact of exercise on microvascular complications in T2D has been uncertain

The authors point out that microvascular complications – such as nerve damage (neuropathy), kidney problems (nephropathy), and eye complications (retinopathy) – occur in more than 50% of individuals with type 2 diabetes and have a “substantial impact” on quality of life, on top of the impact of macrovascular complications (such as cardiovascular disease), disability, and mortality.

Although physical activity is seen as a “cornerstone in the multifactorial management of type 2 diabetes because of its beneficial effects on metabolic risk factors,” the impact on microvascular complications is “uncertain” and the evidence is limited and “conflicting.”

The researchers therefore sought to examine the dose-response association, including the minimal effective level, between leisure-time physical activity and neuropathy, nephropathy, and retinopathy.

They conducted a cohort study of individuals aged 37-82 years from the U.K. Biobank who had type 2 diabetes, which was identified using the Eastwood algorithm and/or an A1c greater than or equal to 48 mmol/mol (6.5%).

Individuals with type 1 diabetes or gestational diabetes were excluded, as were those with major disabling somatic disorders, neurodegenerative diseases, and mental disorders, among others.

Leisure-time physical activity was based on the self-reported frequency, duration, and types of physical activities and was combined to calculate the total leisure time activity in MET-hours per week.

Using the American Diabetes Association/World Health Organization recommendations of 150-300 minutes of moderate to vigorous leisure-time physical activity per week, the researchers determined the recommended moderate activity level to be 150 minutes, (equivalent to 2.5 hours, or 7.5 MET-hours per week).

In all, 18,092 individuals with type 2 diabetes were included in the analysis, of whom 37% were women. The mean age was 60 years.

Ten percent of participants performed no leisure-time physical activity, 38% performed activity below the threshold for moderate activity, 20% performed at the recommended level, and 32% were more active.

Those performing no physical activity were more likely to be women, to be younger, to have a higher body mass index, and to have a greater average A1c, as well as have a more unfavorable sociodemographic and behavioral profile.

Over a median follow-up of 12.1 years, 3.7% of the participants were diagnosed with neuropathy, 10.2% with nephropathy, and 11.7% with retinopathy, equating to an incidence per 1,000 person-years of 3.5, 9,8, and 11.4, respectively.

The researchers found that any level of physical activity was associated with an approximate reduction in the risk for neuropathy and nephropathy.

Multivariate analysis indicated that, compared with no physical activity, activity below the recommended level was associated with an adjusted hazard ratio (aHR) for neuropathy of 0.71, whereas the aHR for activity at the recommended level was 0.73 and that for activity above the recommended level was 0.67.

The aHR for nephropathy, compared with no physical activity, was 0.79 for activity below the recommended level, 0.80 for activity at the recommended level, and 0.80 for activity above the recommended level.

The association between physical activity and retinopathy was weaker, however, at aHRs of 0.91, 0.91, and 0.98 for activity below, at, and above the recommended level, respectively.

The researchers suggest that this lower association could be due to differences in the etiology of the different forms of microvascular complications.

Hyperglycemia is the key driver in the development of retinopathy, they note, whereas other metabolic risk factors, such as obesity, insulin resistance, inflammation, dyslipidemia, and hypertension, play a role in neuropathy and nephropathy.

The associations were also less pronounced in women.

Mr. Kristensen said that this is “an important area that needs to be addressed.”

“While different rates between men and women regarding incidence of type 2 diabetes, metabolic risk factors, complications, and the initiation of, and adherence to, therapy have been found,” he continued, “the exact mechanisms remain unclear. We need a further understanding of sex-differences in metabolic regulation, as well as in material living conditions, social and psychological factors, and access to health care, which may influence the risk of complications.”

Mr. Kristensen added, “Sex differences may be present in more areas than we are aware.”

Mr. Kristensen is supported by a PhD grant from Aarhus University. Other authors received funding from the Danish Diabetes Association, the Australian National Health and Medical Research Council, the New South Wales Government, the Spanish Ministry of Universities, the European Union NextGenerationEU/PRTR (Plan de Recuperación) through a Margarita Salas contract of the University of Vigo, and the Government of Andalusia, Research Talent Recruitment Programme. No relevant financial relationships were declared.

A version of this article appeared on Medscape.com.

Performing any level of leisure-time physical activity reduces the risk for neuropathy and nephropathy in individuals with type 2 diabetes, by between one-fifth and one third, although the impact on retinopathy is weaker, reveals a cohort study of U.K. individuals.

The research, based on data from more than 18,000 participants in the U.K. Biobank, suggests that the minimal level of self-reported activity to reduce the risk for both neuropathy and nephropathy may be the equivalent of less than 1.5 hours of walking per week.

The results are “encouraging and reassuring for both physicians and patients,” lead author Frederik P.B. Kristensen, MSc, PhD student, department of clinical epidemiology, Aarhus (Denmark) University, said in an interview.

Ariel Skelley/Getty Images

Impact of exercise on microvascular complications in T2D has been uncertain

The authors point out that microvascular complications – such as nerve damage (neuropathy), kidney problems (nephropathy), and eye complications (retinopathy) – occur in more than 50% of individuals with type 2 diabetes and have a “substantial impact” on quality of life, on top of the impact of macrovascular complications (such as cardiovascular disease), disability, and mortality.

Although physical activity is seen as a “cornerstone in the multifactorial management of type 2 diabetes because of its beneficial effects on metabolic risk factors,” the impact on microvascular complications is “uncertain” and the evidence is limited and “conflicting.”

The researchers therefore sought to examine the dose-response association, including the minimal effective level, between leisure-time physical activity and neuropathy, nephropathy, and retinopathy.

They conducted a cohort study of individuals aged 37-82 years from the U.K. Biobank who had type 2 diabetes, which was identified using the Eastwood algorithm and/or an A1c greater than or equal to 48 mmol/mol (6.5%).

Individuals with type 1 diabetes or gestational diabetes were excluded, as were those with major disabling somatic disorders, neurodegenerative diseases, and mental disorders, among others.

Leisure-time physical activity was based on the self-reported frequency, duration, and types of physical activities and was combined to calculate the total leisure time activity in MET-hours per week.

Using the American Diabetes Association/World Health Organization recommendations of 150-300 minutes of moderate to vigorous leisure-time physical activity per week, the researchers determined the recommended moderate activity level to be 150 minutes, (equivalent to 2.5 hours, or 7.5 MET-hours per week).

In all, 18,092 individuals with type 2 diabetes were included in the analysis, of whom 37% were women. The mean age was 60 years.

Ten percent of participants performed no leisure-time physical activity, 38% performed activity below the threshold for moderate activity, 20% performed at the recommended level, and 32% were more active.

Those performing no physical activity were more likely to be women, to be younger, to have a higher body mass index, and to have a greater average A1c, as well as have a more unfavorable sociodemographic and behavioral profile.

Over a median follow-up of 12.1 years, 3.7% of the participants were diagnosed with neuropathy, 10.2% with nephropathy, and 11.7% with retinopathy, equating to an incidence per 1,000 person-years of 3.5, 9,8, and 11.4, respectively.

The researchers found that any level of physical activity was associated with an approximate reduction in the risk for neuropathy and nephropathy.

Multivariate analysis indicated that, compared with no physical activity, activity below the recommended level was associated with an adjusted hazard ratio (aHR) for neuropathy of 0.71, whereas the aHR for activity at the recommended level was 0.73 and that for activity above the recommended level was 0.67.

The aHR for nephropathy, compared with no physical activity, was 0.79 for activity below the recommended level, 0.80 for activity at the recommended level, and 0.80 for activity above the recommended level.

The association between physical activity and retinopathy was weaker, however, at aHRs of 0.91, 0.91, and 0.98 for activity below, at, and above the recommended level, respectively.

The researchers suggest that this lower association could be due to differences in the etiology of the different forms of microvascular complications.

Hyperglycemia is the key driver in the development of retinopathy, they note, whereas other metabolic risk factors, such as obesity, insulin resistance, inflammation, dyslipidemia, and hypertension, play a role in neuropathy and nephropathy.

The associations were also less pronounced in women.

Mr. Kristensen said that this is “an important area that needs to be addressed.”

“While different rates between men and women regarding incidence of type 2 diabetes, metabolic risk factors, complications, and the initiation of, and adherence to, therapy have been found,” he continued, “the exact mechanisms remain unclear. We need a further understanding of sex-differences in metabolic regulation, as well as in material living conditions, social and psychological factors, and access to health care, which may influence the risk of complications.”

Mr. Kristensen added, “Sex differences may be present in more areas than we are aware.”

Mr. Kristensen is supported by a PhD grant from Aarhus University. Other authors received funding from the Danish Diabetes Association, the Australian National Health and Medical Research Council, the New South Wales Government, the Spanish Ministry of Universities, the European Union NextGenerationEU/PRTR (Plan de Recuperación) through a Margarita Salas contract of the University of Vigo, and the Government of Andalusia, Research Talent Recruitment Programme. No relevant financial relationships were declared.

A version of this article appeared on Medscape.com.

Performing any level of leisure-time physical activity reduces the risk for neuropathy and nephropathy in individuals with type 2 diabetes, by between one-fifth and one third, although the impact on retinopathy is weaker, reveals a cohort study of U.K. individuals.

The research, based on data from more than 18,000 participants in the U.K. Biobank, suggests that the minimal level of self-reported activity to reduce the risk for both neuropathy and nephropathy may be the equivalent of less than 1.5 hours of walking per week.

The results are “encouraging and reassuring for both physicians and patients,” lead author Frederik P.B. Kristensen, MSc, PhD student, department of clinical epidemiology, Aarhus (Denmark) University, said in an interview.

Ariel Skelley/Getty Images

Impact of exercise on microvascular complications in T2D has been uncertain

The authors point out that microvascular complications – such as nerve damage (neuropathy), kidney problems (nephropathy), and eye complications (retinopathy) – occur in more than 50% of individuals with type 2 diabetes and have a “substantial impact” on quality of life, on top of the impact of macrovascular complications (such as cardiovascular disease), disability, and mortality.

Although physical activity is seen as a “cornerstone in the multifactorial management of type 2 diabetes because of its beneficial effects on metabolic risk factors,” the impact on microvascular complications is “uncertain” and the evidence is limited and “conflicting.”

The researchers therefore sought to examine the dose-response association, including the minimal effective level, between leisure-time physical activity and neuropathy, nephropathy, and retinopathy.

They conducted a cohort study of individuals aged 37-82 years from the U.K. Biobank who had type 2 diabetes, which was identified using the Eastwood algorithm and/or an A1c greater than or equal to 48 mmol/mol (6.5%).

Individuals with type 1 diabetes or gestational diabetes were excluded, as were those with major disabling somatic disorders, neurodegenerative diseases, and mental disorders, among others.

Leisure-time physical activity was based on the self-reported frequency, duration, and types of physical activities and was combined to calculate the total leisure time activity in MET-hours per week.

Using the American Diabetes Association/World Health Organization recommendations of 150-300 minutes of moderate to vigorous leisure-time physical activity per week, the researchers determined the recommended moderate activity level to be 150 minutes, (equivalent to 2.5 hours, or 7.5 MET-hours per week).

In all, 18,092 individuals with type 2 diabetes were included in the analysis, of whom 37% were women. The mean age was 60 years.

Ten percent of participants performed no leisure-time physical activity, 38% performed activity below the threshold for moderate activity, 20% performed at the recommended level, and 32% were more active.

Those performing no physical activity were more likely to be women, to be younger, to have a higher body mass index, and to have a greater average A1c, as well as have a more unfavorable sociodemographic and behavioral profile.

Over a median follow-up of 12.1 years, 3.7% of the participants were diagnosed with neuropathy, 10.2% with nephropathy, and 11.7% with retinopathy, equating to an incidence per 1,000 person-years of 3.5, 9,8, and 11.4, respectively.

The researchers found that any level of physical activity was associated with an approximate reduction in the risk for neuropathy and nephropathy.

Multivariate analysis indicated that, compared with no physical activity, activity below the recommended level was associated with an adjusted hazard ratio (aHR) for neuropathy of 0.71, whereas the aHR for activity at the recommended level was 0.73 and that for activity above the recommended level was 0.67.

The aHR for nephropathy, compared with no physical activity, was 0.79 for activity below the recommended level, 0.80 for activity at the recommended level, and 0.80 for activity above the recommended level.

The association between physical activity and retinopathy was weaker, however, at aHRs of 0.91, 0.91, and 0.98 for activity below, at, and above the recommended level, respectively.

The researchers suggest that this lower association could be due to differences in the etiology of the different forms of microvascular complications.

Hyperglycemia is the key driver in the development of retinopathy, they note, whereas other metabolic risk factors, such as obesity, insulin resistance, inflammation, dyslipidemia, and hypertension, play a role in neuropathy and nephropathy.

The associations were also less pronounced in women.

Mr. Kristensen said that this is “an important area that needs to be addressed.”

“While different rates between men and women regarding incidence of type 2 diabetes, metabolic risk factors, complications, and the initiation of, and adherence to, therapy have been found,” he continued, “the exact mechanisms remain unclear. We need a further understanding of sex-differences in metabolic regulation, as well as in material living conditions, social and psychological factors, and access to health care, which may influence the risk of complications.”

Mr. Kristensen added, “Sex differences may be present in more areas than we are aware.”

Mr. Kristensen is supported by a PhD grant from Aarhus University. Other authors received funding from the Danish Diabetes Association, the Australian National Health and Medical Research Council, the New South Wales Government, the Spanish Ministry of Universities, the European Union NextGenerationEU/PRTR (Plan de Recuperación) through a Margarita Salas contract of the University of Vigo, and the Government of Andalusia, Research Talent Recruitment Programme. No relevant financial relationships were declared.

A version of this article appeared on Medscape.com.

AMSTERDAM – The more weight patients lost while on weekly semaglutide treatment in the STEP-HFpEF trial, the better their outcomes, suggesting that weight loss by itself was a major reason why the treatment improved a broad range of prespecified study outcomes, including symptoms and physical limitations, exercise capacity, and inflammation, new analyses from the trial show.

At the annual congress of the European Society of Cardiology where he presented these new findings, Mikhail N. Kosiborod, MD, also posited that weight loss produced by weekly subcutaneous injections of 2.4 mg semaglutide (Wegovy) for 52 weeks in the study does not fully explain the multiple mechanisms that may be involved in producing this intervention’s effects in the STEP-HFpEF trial.

Mitchel L. Zoler/MDedge News

His report earlier at the congress and in a simultaneously published report of the trial’s primary outcomes established a role for medically induced weight loss in managing patients with obesity-phenotype HFpEF in a total of 529 randomized individuals with HFpEF and obesity but without diabetes.

The new analyses showed that for one of the two primary endpoints – the change from baseline in patients’ assessment on the Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ), the placebo-adjusted average change was a 16.1-point improvement in the 51 people with a 5%-10% weight loss during the 1-year study, and a 21.6-point improvement in the 58 who had at least a 20% weight loss, a between-group average 5.5 point difference that represents a clinically meaningful incremental improvement in this validated metric of symptoms and functional limitations.

Similar weight-related differences in benefit also occurred for the secondary outcomes of changes from baseline in 6-minute walk distance and in levels of C-reactive protein (CRP), a measure of systemic inflammation.

In an adjusted regression model, every 10% drop from baseline body weight was significantly linked with a 6.4-point improvement in KCCQ score, a 14.4 meter improvement in 6-minute walk distance, and a 28% relative reduction from baseline in CRP, reported Dr. Kosiborod, a cardiologist and codirector of the Haverty Cardiometabolic Center of Excellence at Saint Luke’s Mid America Heart Institute in Kansas City, Mo.

These new, prespecified analyses also showed that people with obesity and HFpEF responded roughly the same to semaglutide treatment compared with placebo-treated controls regardless of their starting body mass index, including people with class 1 (30-34 kg/m²), class 2 (35-39 kg/m²), and class 3 (≥ 40 kg/m²) obesity.

Simultaneously with Dr. Kosiborod’s report at the congress, these findings appeared in a report posted online in Nature Medicine.
 

Not every benefit was fully mediated by weight loss

These analyses “do not tell us how much of the benefit was mediated by weight loss, but the data do say that the more weight a person lost, the more benefit they got,” Dr. Kosiborod explained in an interview. “That is not the same as saying that everything is mediated by weight. It doesn’t say that nothing beyond weight loss matters.”

He and his associates are planning a mediation analysis of data from STEP-HFpEF that will more directly address this issue.

“It’s likely that people who lost more weight with semaglutide also had greater benefits from other effects of semaglutide at the same time. Weight loss is a good surrogate marker” for the range of effects that a person receives from treatment with semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist, Dr. Kosiborod said.

“GLP-1 receptor agonists may have direct effects on atherosclerosis, as well as other effects that are uncoupled from weight loss,” such as proven anti-inflammatory effects, he added.

Another exploratory effect from semaglutide treatment in the study and reported by Dr. Kosiborod was a significant reduction in serum levels of N-terminal pro brain natriuretic peptide, an association never previously seen with weight loss in people with heart failure.

“The outcomes we’ve already seen in STEP-HFpEF were largely symptomatic, which are extraordinarily important, but there may be a completely different relationship between weight and clinical events,” said John E. Deanfield, PhD, a professor of cardiology at University College Hospital, London, who was not involved in the study.

Dr. Deanfield noted that important prognostic markers such as cholesterol levels and blood pressure reductions are usually not temporally related to weight loss. “The idea that [the benefits seen in STEP-HFpEF] are purely from weight loss is something we need to be careful about,” he said.

“My gut feeling is that at least 75% of the effect [in STEP-HFpEF} was due to weight loss,” said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow, who was not associated with the research.

STEP-HFpEF was funded by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Kosiborod has been a consultant and adviser to, and has received honoraria from, Novo Nordisk. He has been a consultant to numerous other companies, received research grants from AstraZeneca, Boehringer Ingelheim, and Pfizer, honoraria from AstraZeneca, and is a stockholder in Artera Health and Saghmos Therapeutics. Dr. Deanfield has been a consultant to Novo Nordisk as well as to Aegerion, Amgen, Bayer, Boehringer Ingelheim, Merck, Novartis, Pfizer, Sanofi, and Takeda, and has received research funding from Aegerion, Colgate, MSD, Pfizer, and Roche. Dr. Sattar has been a consultant to Novo Nordisk as well as to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Pfizer, and Roche Diagnostics.
 

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

AMSTERDAM – The more weight patients lost while on weekly semaglutide treatment in the STEP-HFpEF trial, the better their outcomes, suggesting that weight loss by itself was a major reason why the treatment improved a broad range of prespecified study outcomes, including symptoms and physical limitations, exercise capacity, and inflammation, new analyses from the trial show.

At the annual congress of the European Society of Cardiology where he presented these new findings, Mikhail N. Kosiborod, MD, also posited that weight loss produced by weekly subcutaneous injections of 2.4 mg semaglutide (Wegovy) for 52 weeks in the study does not fully explain the multiple mechanisms that may be involved in producing this intervention’s effects in the STEP-HFpEF trial.

Mitchel L. Zoler/MDedge News

His report earlier at the congress and in a simultaneously published report of the trial’s primary outcomes established a role for medically induced weight loss in managing patients with obesity-phenotype HFpEF in a total of 529 randomized individuals with HFpEF and obesity but without diabetes.

The new analyses showed that for one of the two primary endpoints – the change from baseline in patients’ assessment on the Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ), the placebo-adjusted average change was a 16.1-point improvement in the 51 people with a 5%-10% weight loss during the 1-year study, and a 21.6-point improvement in the 58 who had at least a 20% weight loss, a between-group average 5.5 point difference that represents a clinically meaningful incremental improvement in this validated metric of symptoms and functional limitations.

Similar weight-related differences in benefit also occurred for the secondary outcomes of changes from baseline in 6-minute walk distance and in levels of C-reactive protein (CRP), a measure of systemic inflammation.

In an adjusted regression model, every 10% drop from baseline body weight was significantly linked with a 6.4-point improvement in KCCQ score, a 14.4 meter improvement in 6-minute walk distance, and a 28% relative reduction from baseline in CRP, reported Dr. Kosiborod, a cardiologist and codirector of the Haverty Cardiometabolic Center of Excellence at Saint Luke’s Mid America Heart Institute in Kansas City, Mo.

These new, prespecified analyses also showed that people with obesity and HFpEF responded roughly the same to semaglutide treatment compared with placebo-treated controls regardless of their starting body mass index, including people with class 1 (30-34 kg/m²), class 2 (35-39 kg/m²), and class 3 (≥ 40 kg/m²) obesity.

Simultaneously with Dr. Kosiborod’s report at the congress, these findings appeared in a report posted online in Nature Medicine.
 

Not every benefit was fully mediated by weight loss

These analyses “do not tell us how much of the benefit was mediated by weight loss, but the data do say that the more weight a person lost, the more benefit they got,” Dr. Kosiborod explained in an interview. “That is not the same as saying that everything is mediated by weight. It doesn’t say that nothing beyond weight loss matters.”

He and his associates are planning a mediation analysis of data from STEP-HFpEF that will more directly address this issue.

“It’s likely that people who lost more weight with semaglutide also had greater benefits from other effects of semaglutide at the same time. Weight loss is a good surrogate marker” for the range of effects that a person receives from treatment with semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist, Dr. Kosiborod said.

“GLP-1 receptor agonists may have direct effects on atherosclerosis, as well as other effects that are uncoupled from weight loss,” such as proven anti-inflammatory effects, he added.

Another exploratory effect from semaglutide treatment in the study and reported by Dr. Kosiborod was a significant reduction in serum levels of N-terminal pro brain natriuretic peptide, an association never previously seen with weight loss in people with heart failure.

“The outcomes we’ve already seen in STEP-HFpEF were largely symptomatic, which are extraordinarily important, but there may be a completely different relationship between weight and clinical events,” said John E. Deanfield, PhD, a professor of cardiology at University College Hospital, London, who was not involved in the study.

Dr. Deanfield noted that important prognostic markers such as cholesterol levels and blood pressure reductions are usually not temporally related to weight loss. “The idea that [the benefits seen in STEP-HFpEF] are purely from weight loss is something we need to be careful about,” he said.

“My gut feeling is that at least 75% of the effect [in STEP-HFpEF} was due to weight loss,” said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow, who was not associated with the research.

STEP-HFpEF was funded by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Kosiborod has been a consultant and adviser to, and has received honoraria from, Novo Nordisk. He has been a consultant to numerous other companies, received research grants from AstraZeneca, Boehringer Ingelheim, and Pfizer, honoraria from AstraZeneca, and is a stockholder in Artera Health and Saghmos Therapeutics. Dr. Deanfield has been a consultant to Novo Nordisk as well as to Aegerion, Amgen, Bayer, Boehringer Ingelheim, Merck, Novartis, Pfizer, Sanofi, and Takeda, and has received research funding from Aegerion, Colgate, MSD, Pfizer, and Roche. Dr. Sattar has been a consultant to Novo Nordisk as well as to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Pfizer, and Roche Diagnostics.
 

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

AMSTERDAM – The more weight patients lost while on weekly semaglutide treatment in the STEP-HFpEF trial, the better their outcomes, suggesting that weight loss by itself was a major reason why the treatment improved a broad range of prespecified study outcomes, including symptoms and physical limitations, exercise capacity, and inflammation, new analyses from the trial show.

At the annual congress of the European Society of Cardiology where he presented these new findings, Mikhail N. Kosiborod, MD, also posited that weight loss produced by weekly subcutaneous injections of 2.4 mg semaglutide (Wegovy) for 52 weeks in the study does not fully explain the multiple mechanisms that may be involved in producing this intervention’s effects in the STEP-HFpEF trial.

Mitchel L. Zoler/MDedge News

His report earlier at the congress and in a simultaneously published report of the trial’s primary outcomes established a role for medically induced weight loss in managing patients with obesity-phenotype HFpEF in a total of 529 randomized individuals with HFpEF and obesity but without diabetes.

The new analyses showed that for one of the two primary endpoints – the change from baseline in patients’ assessment on the Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ), the placebo-adjusted average change was a 16.1-point improvement in the 51 people with a 5%-10% weight loss during the 1-year study, and a 21.6-point improvement in the 58 who had at least a 20% weight loss, a between-group average 5.5 point difference that represents a clinically meaningful incremental improvement in this validated metric of symptoms and functional limitations.

Similar weight-related differences in benefit also occurred for the secondary outcomes of changes from baseline in 6-minute walk distance and in levels of C-reactive protein (CRP), a measure of systemic inflammation.

In an adjusted regression model, every 10% drop from baseline body weight was significantly linked with a 6.4-point improvement in KCCQ score, a 14.4 meter improvement in 6-minute walk distance, and a 28% relative reduction from baseline in CRP, reported Dr. Kosiborod, a cardiologist and codirector of the Haverty Cardiometabolic Center of Excellence at Saint Luke’s Mid America Heart Institute in Kansas City, Mo.

These new, prespecified analyses also showed that people with obesity and HFpEF responded roughly the same to semaglutide treatment compared with placebo-treated controls regardless of their starting body mass index, including people with class 1 (30-34 kg/m²), class 2 (35-39 kg/m²), and class 3 (≥ 40 kg/m²) obesity.

Simultaneously with Dr. Kosiborod’s report at the congress, these findings appeared in a report posted online in Nature Medicine.
 

Not every benefit was fully mediated by weight loss

These analyses “do not tell us how much of the benefit was mediated by weight loss, but the data do say that the more weight a person lost, the more benefit they got,” Dr. Kosiborod explained in an interview. “That is not the same as saying that everything is mediated by weight. It doesn’t say that nothing beyond weight loss matters.”

He and his associates are planning a mediation analysis of data from STEP-HFpEF that will more directly address this issue.

“It’s likely that people who lost more weight with semaglutide also had greater benefits from other effects of semaglutide at the same time. Weight loss is a good surrogate marker” for the range of effects that a person receives from treatment with semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist, Dr. Kosiborod said.

“GLP-1 receptor agonists may have direct effects on atherosclerosis, as well as other effects that are uncoupled from weight loss,” such as proven anti-inflammatory effects, he added.

Another exploratory effect from semaglutide treatment in the study and reported by Dr. Kosiborod was a significant reduction in serum levels of N-terminal pro brain natriuretic peptide, an association never previously seen with weight loss in people with heart failure.

“The outcomes we’ve already seen in STEP-HFpEF were largely symptomatic, which are extraordinarily important, but there may be a completely different relationship between weight and clinical events,” said John E. Deanfield, PhD, a professor of cardiology at University College Hospital, London, who was not involved in the study.

Dr. Deanfield noted that important prognostic markers such as cholesterol levels and blood pressure reductions are usually not temporally related to weight loss. “The idea that [the benefits seen in STEP-HFpEF] are purely from weight loss is something we need to be careful about,” he said.

“My gut feeling is that at least 75% of the effect [in STEP-HFpEF} was due to weight loss,” said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow, who was not associated with the research.

STEP-HFpEF was funded by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Kosiborod has been a consultant and adviser to, and has received honoraria from, Novo Nordisk. He has been a consultant to numerous other companies, received research grants from AstraZeneca, Boehringer Ingelheim, and Pfizer, honoraria from AstraZeneca, and is a stockholder in Artera Health and Saghmos Therapeutics. Dr. Deanfield has been a consultant to Novo Nordisk as well as to Aegerion, Amgen, Bayer, Boehringer Ingelheim, Merck, Novartis, Pfizer, Sanofi, and Takeda, and has received research funding from Aegerion, Colgate, MSD, Pfizer, and Roche. Dr. Sattar has been a consultant to Novo Nordisk as well as to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Pfizer, and Roche Diagnostics.
 

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

TOPLINE:

Both short and long sleep durations appear to increase the risk for type 2 diabetes, independent of lifestyle and cardiovascular risk factors, suggests an analysis of a Dutch study.

METHODOLOGY:

• Data on 5,561 participants aged 40–75 years from The Maastricht Study who completed the baseline survey between November 2010 and January 2018 and had full data available were included.
• Sleep duration was assessed as the in-bed time in minutes, using a median of 7 nights’ data from an activPAL3 (PAL Technologies) accelerometer, which is worn on the thigh.
• Glucose metabolism was determined via an oral glucose tolerance test and categorized as prediabetes or type 2 diabetes in line with World Health Organization diagnostic criteria.
• The association between sleep duration and type 2 diabetes was assessed on multivariate logistic regression analysis, taking into account a range of potential confounding factors.

TAKEAWAY:

• The mean age of the participants was 60.1 years, and there was an even split between men and women. In all, 832 had prediabetes and 1,341 type 2 diabetes, and the mean sleep duration was 8.3 hours.
• The results indicated there was a U-shaped relationship between sleep duration and type 2 diabetes, so that both long and short sleep durations increased the risk.
• In the fully adjusted model, a sleep duration of 5 hours was associated with an odds ratio for type 2 diabetes versus 8 hours sleep of 2.9. For a sleep duration of 12 hours, the odds ratio was 1.8.
• The association between sleep duration and diabetes was not significant.

IN PRACTICE:

The results “support the idea that sleep duration could be a relevant risk factor for type 2 diabetes independent of lifestyle risk factors, including diet, physical activity, smoking behavior, and alcohol consumption,” wrote the authors.

“These findings underpin the importance of promoting healthy sleep habits to avoid sleep deprivation,” they added.
 

STUDY DETAILS:

The research was led by Jeroen D. Albers, MSc, department of social medicine, Maastricht (the Netherlands) University, and published in Sleep Health. It is an analysis of The Maastricht Study.

LIMITATIONS:

The study is limited by its cross-sectional nature, particularly because there are “plausible causal paths between sleep duration and type 2 in both directions,” the authors note. The accelerometer used in the study also cannot reliably distinguish between waking and sleeping time in bed, with the potential for misclassification. Daytime naps were also not included, and long-term changes sleep patterns were not measured. In addition, it was not possible to control for some potential confounding factors.

DISCLOSURES:

The Maastricht Study was supported by the European Regional Development Fund via OP-Zuid, the Province of Limburg, the Dutch Ministry of Economic Affairs, Stichting De Weijerhorst, the Pearl String Initiative Diabetes, the School for Cardiovascular Diseases, the School for Public Health and Primary Care, the School for Nutrition and Translational Research in Metabolism, Stichting Annadal, Health Foundation Limburg, and unrestricted grants from Janssen-Cilag, Novo Nordisk, and Sanofi Aventis Netherlands. One author declares a relationship with Novo Nordisk outside the submitted work. No other relevant financial relationships were declared.

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

TOPLINE:

Both short and long sleep durations appear to increase the risk for type 2 diabetes, independent of lifestyle and cardiovascular risk factors, suggests an analysis of a Dutch study.

METHODOLOGY:

• Data on 5,561 participants aged 40–75 years from The Maastricht Study who completed the baseline survey between November 2010 and January 2018 and had full data available were included.
• Sleep duration was assessed as the in-bed time in minutes, using a median of 7 nights’ data from an activPAL3 (PAL Technologies) accelerometer, which is worn on the thigh.
• Glucose metabolism was determined via an oral glucose tolerance test and categorized as prediabetes or type 2 diabetes in line with World Health Organization diagnostic criteria.
• The association between sleep duration and type 2 diabetes was assessed on multivariate logistic regression analysis, taking into account a range of potential confounding factors.

TAKEAWAY:

• The mean age of the participants was 60.1 years, and there was an even split between men and women. In all, 832 had prediabetes and 1,341 type 2 diabetes, and the mean sleep duration was 8.3 hours.
• The results indicated there was a U-shaped relationship between sleep duration and type 2 diabetes, so that both long and short sleep durations increased the risk.
• In the fully adjusted model, a sleep duration of 5 hours was associated with an odds ratio for type 2 diabetes versus 8 hours sleep of 2.9. For a sleep duration of 12 hours, the odds ratio was 1.8.
• The association between sleep duration and diabetes was not significant.

IN PRACTICE:

The results “support the idea that sleep duration could be a relevant risk factor for type 2 diabetes independent of lifestyle risk factors, including diet, physical activity, smoking behavior, and alcohol consumption,” wrote the authors.

“These findings underpin the importance of promoting healthy sleep habits to avoid sleep deprivation,” they added.
 

STUDY DETAILS:

The research was led by Jeroen D. Albers, MSc, department of social medicine, Maastricht (the Netherlands) University, and published in Sleep Health. It is an analysis of The Maastricht Study.

LIMITATIONS:

The study is limited by its cross-sectional nature, particularly because there are “plausible causal paths between sleep duration and type 2 in both directions,” the authors note. The accelerometer used in the study also cannot reliably distinguish between waking and sleeping time in bed, with the potential for misclassification. Daytime naps were also not included, and long-term changes sleep patterns were not measured. In addition, it was not possible to control for some potential confounding factors.

DISCLOSURES:

The Maastricht Study was supported by the European Regional Development Fund via OP-Zuid, the Province of Limburg, the Dutch Ministry of Economic Affairs, Stichting De Weijerhorst, the Pearl String Initiative Diabetes, the School for Cardiovascular Diseases, the School for Public Health and Primary Care, the School for Nutrition and Translational Research in Metabolism, Stichting Annadal, Health Foundation Limburg, and unrestricted grants from Janssen-Cilag, Novo Nordisk, and Sanofi Aventis Netherlands. One author declares a relationship with Novo Nordisk outside the submitted work. No other relevant financial relationships were declared.

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

TOPLINE:

Both short and long sleep durations appear to increase the risk for type 2 diabetes, independent of lifestyle and cardiovascular risk factors, suggests an analysis of a Dutch study.

METHODOLOGY:

• Data on 5,561 participants aged 40–75 years from The Maastricht Study who completed the baseline survey between November 2010 and January 2018 and had full data available were included.
• Sleep duration was assessed as the in-bed time in minutes, using a median of 7 nights’ data from an activPAL3 (PAL Technologies) accelerometer, which is worn on the thigh.
• Glucose metabolism was determined via an oral glucose tolerance test and categorized as prediabetes or type 2 diabetes in line with World Health Organization diagnostic criteria.
• The association between sleep duration and type 2 diabetes was assessed on multivariate logistic regression analysis, taking into account a range of potential confounding factors.

TAKEAWAY:

• The mean age of the participants was 60.1 years, and there was an even split between men and women. In all, 832 had prediabetes and 1,341 type 2 diabetes, and the mean sleep duration was 8.3 hours.
• The results indicated there was a U-shaped relationship between sleep duration and type 2 diabetes, so that both long and short sleep durations increased the risk.
• In the fully adjusted model, a sleep duration of 5 hours was associated with an odds ratio for type 2 diabetes versus 8 hours sleep of 2.9. For a sleep duration of 12 hours, the odds ratio was 1.8.
• The association between sleep duration and diabetes was not significant.

IN PRACTICE:

The results “support the idea that sleep duration could be a relevant risk factor for type 2 diabetes independent of lifestyle risk factors, including diet, physical activity, smoking behavior, and alcohol consumption,” wrote the authors.

“These findings underpin the importance of promoting healthy sleep habits to avoid sleep deprivation,” they added.
 

STUDY DETAILS:

The research was led by Jeroen D. Albers, MSc, department of social medicine, Maastricht (the Netherlands) University, and published in Sleep Health. It is an analysis of The Maastricht Study.

LIMITATIONS:

The study is limited by its cross-sectional nature, particularly because there are “plausible causal paths between sleep duration and type 2 in both directions,” the authors note. The accelerometer used in the study also cannot reliably distinguish between waking and sleeping time in bed, with the potential for misclassification. Daytime naps were also not included, and long-term changes sleep patterns were not measured. In addition, it was not possible to control for some potential confounding factors.

DISCLOSURES:

The Maastricht Study was supported by the European Regional Development Fund via OP-Zuid, the Province of Limburg, the Dutch Ministry of Economic Affairs, Stichting De Weijerhorst, the Pearl String Initiative Diabetes, the School for Cardiovascular Diseases, the School for Public Health and Primary Care, the School for Nutrition and Translational Research in Metabolism, Stichting Annadal, Health Foundation Limburg, and unrestricted grants from Janssen-Cilag, Novo Nordisk, and Sanofi Aventis Netherlands. One author declares a relationship with Novo Nordisk outside the submitted work. No other relevant financial relationships were declared.

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

AMSTERDAM – The era of guidelines that recommended treatment with either a sodium-glucose cotransporter-2 (SGLT-2) inhibitor or a glucagonlike peptide-1 (GLP-1) receptor agonist in people with type 2 diabetes mellitus and established cardiovascular disease (CVD) ended with new recommendations from the European Society of Cardiology that call for starting both classes simultaneously.

“A key change is that we removed the ‘and-or’ and the ‘either-or’ terms and recommend using both classes simultaneously in patients who are eligible based on their clinical indications and without contraindications or intolerance,” said Darren K. McGuire, MD, at the annual congress of the European Society of Cardiology.

The society’s new guidelines for managing CVD in patients with diabetes, released on Aug. 25 and presented in several sessions at the Congress, also break with the past by calling for starting treatment with both an SGLT-2 inhibitor and a GLP-1 receptor agonist without regard to a person’s existing level of glucose control, including their current and target hemoglobin A1c levels, and regardless of background therapy, added Dr. McGuire, a cardiologist and professor at the UT Southwestern Medical Center in Dallas and a member of the ESC panel that wrote the new guidelines.

Instead, the new guidance calls for starting both drug classes promptly in people diagnosed with type 2 diabetes and established atherosclerotic CVD.

Both the previous ESC guidelines from 2019 as well as the current Standards of Care for 2023 document from the American Diabetes Association call for using one class or the other, but they hedge on combined treatment as discretionary.
 

Different mechanisms mean additive benefits

“With increasing numbers of patients with type 2 diabetes in trials for SGLT-2 inhibitors or GLP-1 receptor agonists who were also on the other drug class, we’ve done large, stratified analyses that suggest no treatment-effect modification” when people received agents from both drug classes, Dr. McGuire explained in an interview. “While we don’t understand the mechanisms of action of these drugs for CVD, we’ve become very confident that they use different mechanisms” that appear to have at least partially additive effects.

“Their benefits for CVD risk reduction are completely independent of their glucose effects. They are cardiology drugs,” Dr. McGuire added.

The new ESC guidelines highlight two other clinical settings where people with type 2 diabetes should receive an SGLT-2 inhibitor regardless of their existing level of glucose control and any other medical treatment: people with heart failure and people with chronic kidney disease (CKD) based on a depressed estimated glomerular filtration rate and an elevated urine albumin-to-creatinine ratio.

Nephropathy was considered by the ESC’s guideline panel to confer risk that is similar to that of established atherosclerotic CVD, Dr. McGuire said.

The guidelines also, for the first time for ESC recommendations, made treatment with finerenone (Kerendia, Bayer) a class 1 level A recommendation for people with type 2 diabetes and CKD.
 

SCORE2-Diabetes risk estimator

Another major change in the new ESC guideline revision is introduction of a CVD risk calculator intended to estimate the risk among people with type 2 diabetes but without established CVD, heart failure, or CKD.

Called the SCORE2-Diabetes risk estimator, it calculates a person’s 10-year risk for CVD and includes adjustment based on the European region where a person lives; it also tallies different risk levels for women and for men.

The researchers who developed the SCORE2-Diabetes calculator used data from nearly 230,000 people to devise the tool and then validated it with data from an additional 217,000 Europeans with type 2 diabetes.

Key features of the calculator include its use of routinely collected clinical values, such as age, sex, systolic blood pressure, smoking status, serum cholesterol levels, age at diabetes diagnosis, hemoglobin A1c level, and estimated glomerular filtration rate.

“For the first time we have a clear score to categorize risk” in people with type 2 diabetes and identify who needs more aggressive treatment to prevent CVD development,” said Emanuele Di Angelantonio, MD, PhD, deputy director of the cardiovascular epidemiology unit at the University of Cambridge (England).

The guidelines say that people who have a low (< 5%) or moderate (5%-9%) 10-year risk for CVD are possible candidates for metformin treatment. Those with high (10%-19%) or very high (≥ 20%) risk are possible candidates for treatment with metformin and/or an SGLT-2 inhibitor and/or a GLP-1 receptor agonist, said Dr. Di Angelantonio during his talk at the congress on the new risk score.

“The risk score is a good addition” because it estimates future CVD risk better and more systematically than usual practice, which generally relies on no systematic tool, said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow (Scotland) and also a member of the guideline-writing panel.

The new risk score “is a reasonable way” to identify people without CVD but at elevated risk who might benefit from treatment with a relatively expensive drug, such as an SGLT-2 inhibitor, Dr. Sattar said in an interview. “It doesn’t rely on any fancy biomarkers or imaging, and it takes about 30 seconds to calculate. It’s not perfect, but it gets the job done,” and it will increase the number of people with type 2 diabetes who will receive an SGLT-2 inhibitor, he predicted.

Dr. McGuire has been a consultant to Altimmune, Applied Therapeutics, AstraZeneca, Bayer, Boehringer-Ingelheim, Intercept, Lexion, Lilly, Merck, New Amsterdam, and Pfizer. Dr. Di Angelantonio had no disclosures. Dr. Sattar has been a consultant to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, Pfizer, and Roche Diagnostics.

A version of this article appeared on Medscape.com.

AMSTERDAM – The era of guidelines that recommended treatment with either a sodium-glucose cotransporter-2 (SGLT-2) inhibitor or a glucagonlike peptide-1 (GLP-1) receptor agonist in people with type 2 diabetes mellitus and established cardiovascular disease (CVD) ended with new recommendations from the European Society of Cardiology that call for starting both classes simultaneously.

“A key change is that we removed the ‘and-or’ and the ‘either-or’ terms and recommend using both classes simultaneously in patients who are eligible based on their clinical indications and without contraindications or intolerance,” said Darren K. McGuire, MD, at the annual congress of the European Society of Cardiology.

The society’s new guidelines for managing CVD in patients with diabetes, released on Aug. 25 and presented in several sessions at the Congress, also break with the past by calling for starting treatment with both an SGLT-2 inhibitor and a GLP-1 receptor agonist without regard to a person’s existing level of glucose control, including their current and target hemoglobin A1c levels, and regardless of background therapy, added Dr. McGuire, a cardiologist and professor at the UT Southwestern Medical Center in Dallas and a member of the ESC panel that wrote the new guidelines.

Instead, the new guidance calls for starting both drug classes promptly in people diagnosed with type 2 diabetes and established atherosclerotic CVD.

Both the previous ESC guidelines from 2019 as well as the current Standards of Care for 2023 document from the American Diabetes Association call for using one class or the other, but they hedge on combined treatment as discretionary.
 

Different mechanisms mean additive benefits

“With increasing numbers of patients with type 2 diabetes in trials for SGLT-2 inhibitors or GLP-1 receptor agonists who were also on the other drug class, we’ve done large, stratified analyses that suggest no treatment-effect modification” when people received agents from both drug classes, Dr. McGuire explained in an interview. “While we don’t understand the mechanisms of action of these drugs for CVD, we’ve become very confident that they use different mechanisms” that appear to have at least partially additive effects.

“Their benefits for CVD risk reduction are completely independent of their glucose effects. They are cardiology drugs,” Dr. McGuire added.

The new ESC guidelines highlight two other clinical settings where people with type 2 diabetes should receive an SGLT-2 inhibitor regardless of their existing level of glucose control and any other medical treatment: people with heart failure and people with chronic kidney disease (CKD) based on a depressed estimated glomerular filtration rate and an elevated urine albumin-to-creatinine ratio.

Nephropathy was considered by the ESC’s guideline panel to confer risk that is similar to that of established atherosclerotic CVD, Dr. McGuire said.

The guidelines also, for the first time for ESC recommendations, made treatment with finerenone (Kerendia, Bayer) a class 1 level A recommendation for people with type 2 diabetes and CKD.
 

SCORE2-Diabetes risk estimator

Another major change in the new ESC guideline revision is introduction of a CVD risk calculator intended to estimate the risk among people with type 2 diabetes but without established CVD, heart failure, or CKD.

Called the SCORE2-Diabetes risk estimator, it calculates a person’s 10-year risk for CVD and includes adjustment based on the European region where a person lives; it also tallies different risk levels for women and for men.

The researchers who developed the SCORE2-Diabetes calculator used data from nearly 230,000 people to devise the tool and then validated it with data from an additional 217,000 Europeans with type 2 diabetes.

Key features of the calculator include its use of routinely collected clinical values, such as age, sex, systolic blood pressure, smoking status, serum cholesterol levels, age at diabetes diagnosis, hemoglobin A1c level, and estimated glomerular filtration rate.

“For the first time we have a clear score to categorize risk” in people with type 2 diabetes and identify who needs more aggressive treatment to prevent CVD development,” said Emanuele Di Angelantonio, MD, PhD, deputy director of the cardiovascular epidemiology unit at the University of Cambridge (England).

The guidelines say that people who have a low (< 5%) or moderate (5%-9%) 10-year risk for CVD are possible candidates for metformin treatment. Those with high (10%-19%) or very high (≥ 20%) risk are possible candidates for treatment with metformin and/or an SGLT-2 inhibitor and/or a GLP-1 receptor agonist, said Dr. Di Angelantonio during his talk at the congress on the new risk score.

“The risk score is a good addition” because it estimates future CVD risk better and more systematically than usual practice, which generally relies on no systematic tool, said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow (Scotland) and also a member of the guideline-writing panel.

The new risk score “is a reasonable way” to identify people without CVD but at elevated risk who might benefit from treatment with a relatively expensive drug, such as an SGLT-2 inhibitor, Dr. Sattar said in an interview. “It doesn’t rely on any fancy biomarkers or imaging, and it takes about 30 seconds to calculate. It’s not perfect, but it gets the job done,” and it will increase the number of people with type 2 diabetes who will receive an SGLT-2 inhibitor, he predicted.

Dr. McGuire has been a consultant to Altimmune, Applied Therapeutics, AstraZeneca, Bayer, Boehringer-Ingelheim, Intercept, Lexion, Lilly, Merck, New Amsterdam, and Pfizer. Dr. Di Angelantonio had no disclosures. Dr. Sattar has been a consultant to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, Pfizer, and Roche Diagnostics.

A version of this article appeared on Medscape.com.

AMSTERDAM – The era of guidelines that recommended treatment with either a sodium-glucose cotransporter-2 (SGLT-2) inhibitor or a glucagonlike peptide-1 (GLP-1) receptor agonist in people with type 2 diabetes mellitus and established cardiovascular disease (CVD) ended with new recommendations from the European Society of Cardiology that call for starting both classes simultaneously.

“A key change is that we removed the ‘and-or’ and the ‘either-or’ terms and recommend using both classes simultaneously in patients who are eligible based on their clinical indications and without contraindications or intolerance,” said Darren K. McGuire, MD, at the annual congress of the European Society of Cardiology.

The society’s new guidelines for managing CVD in patients with diabetes, released on Aug. 25 and presented in several sessions at the Congress, also break with the past by calling for starting treatment with both an SGLT-2 inhibitor and a GLP-1 receptor agonist without regard to a person’s existing level of glucose control, including their current and target hemoglobin A1c levels, and regardless of background therapy, added Dr. McGuire, a cardiologist and professor at the UT Southwestern Medical Center in Dallas and a member of the ESC panel that wrote the new guidelines.

Instead, the new guidance calls for starting both drug classes promptly in people diagnosed with type 2 diabetes and established atherosclerotic CVD.

Both the previous ESC guidelines from 2019 as well as the current Standards of Care for 2023 document from the American Diabetes Association call for using one class or the other, but they hedge on combined treatment as discretionary.
 

Different mechanisms mean additive benefits

“With increasing numbers of patients with type 2 diabetes in trials for SGLT-2 inhibitors or GLP-1 receptor agonists who were also on the other drug class, we’ve done large, stratified analyses that suggest no treatment-effect modification” when people received agents from both drug classes, Dr. McGuire explained in an interview. “While we don’t understand the mechanisms of action of these drugs for CVD, we’ve become very confident that they use different mechanisms” that appear to have at least partially additive effects.

“Their benefits for CVD risk reduction are completely independent of their glucose effects. They are cardiology drugs,” Dr. McGuire added.

The new ESC guidelines highlight two other clinical settings where people with type 2 diabetes should receive an SGLT-2 inhibitor regardless of their existing level of glucose control and any other medical treatment: people with heart failure and people with chronic kidney disease (CKD) based on a depressed estimated glomerular filtration rate and an elevated urine albumin-to-creatinine ratio.

Nephropathy was considered by the ESC’s guideline panel to confer risk that is similar to that of established atherosclerotic CVD, Dr. McGuire said.

The guidelines also, for the first time for ESC recommendations, made treatment with finerenone (Kerendia, Bayer) a class 1 level A recommendation for people with type 2 diabetes and CKD.
 

SCORE2-Diabetes risk estimator

Another major change in the new ESC guideline revision is introduction of a CVD risk calculator intended to estimate the risk among people with type 2 diabetes but without established CVD, heart failure, or CKD.

Called the SCORE2-Diabetes risk estimator, it calculates a person’s 10-year risk for CVD and includes adjustment based on the European region where a person lives; it also tallies different risk levels for women and for men.

The researchers who developed the SCORE2-Diabetes calculator used data from nearly 230,000 people to devise the tool and then validated it with data from an additional 217,000 Europeans with type 2 diabetes.

Key features of the calculator include its use of routinely collected clinical values, such as age, sex, systolic blood pressure, smoking status, serum cholesterol levels, age at diabetes diagnosis, hemoglobin A1c level, and estimated glomerular filtration rate.

“For the first time we have a clear score to categorize risk” in people with type 2 diabetes and identify who needs more aggressive treatment to prevent CVD development,” said Emanuele Di Angelantonio, MD, PhD, deputy director of the cardiovascular epidemiology unit at the University of Cambridge (England).

The guidelines say that people who have a low (< 5%) or moderate (5%-9%) 10-year risk for CVD are possible candidates for metformin treatment. Those with high (10%-19%) or very high (≥ 20%) risk are possible candidates for treatment with metformin and/or an SGLT-2 inhibitor and/or a GLP-1 receptor agonist, said Dr. Di Angelantonio during his talk at the congress on the new risk score.

“The risk score is a good addition” because it estimates future CVD risk better and more systematically than usual practice, which generally relies on no systematic tool, said Naveed Sattar, PhD, professor of metabolic medicine at the University of Glasgow (Scotland) and also a member of the guideline-writing panel.

The new risk score “is a reasonable way” to identify people without CVD but at elevated risk who might benefit from treatment with a relatively expensive drug, such as an SGLT-2 inhibitor, Dr. Sattar said in an interview. “It doesn’t rely on any fancy biomarkers or imaging, and it takes about 30 seconds to calculate. It’s not perfect, but it gets the job done,” and it will increase the number of people with type 2 diabetes who will receive an SGLT-2 inhibitor, he predicted.

Dr. McGuire has been a consultant to Altimmune, Applied Therapeutics, AstraZeneca, Bayer, Boehringer-Ingelheim, Intercept, Lexion, Lilly, Merck, New Amsterdam, and Pfizer. Dr. Di Angelantonio had no disclosures. Dr. Sattar has been a consultant to Abbott, Amgen, AstraZeneca, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, Pfizer, and Roche Diagnostics.

A version of this article appeared on Medscape.com.

A consumer watchdog group is pressing for broader public access to a confidential federal database that tracks disciplinary records for physicians in a new report, arguing that extra public scrutiny could pressure state medical boards to be more aggressive watchdogs.

Public Citizen’s report includes an analysis of how frequently medical boards sanctioned physicians in 2019, 2020, and 2021. These sanctions include license revocations, suspensions, voluntary surrenders of licenses, and limitations on practice while under investigation.

The report used data from the National Practitioner Data Bank (NPDB), a federal repository of reports about state licensure, discipline, and certification actions as well as medical malpractice payments. The database is closed to the public, but hospitals, malpractice insurers, and investigators can query it.

According to Public Citizen’s calculations, states most likely to take serious disciplinary action against physicians were:

• Michigan: 1.74 serious disciplinary actions per 1,000 physicians per year
• Ohio: 1.61
• North Dakota: 1.60
• Colorado: 1.55
• Arizona: 1.53
• The states least likely to do so were:
• Nevada: 0.24 serious disciplinary actions per 1,000 physicians per year
• New Hampshire: 0.25
• Georgia: 0.27
• Indiana: 0.28
• Nebraska: 0.32
• California, the largest U.S. state by both population and number of physicians, landed near the middle, ranking 27th with a rate of 0.83 serious actions per 1,000 physicians, Public Citizen said.

“There is no evidence that physicians in any state are, overall, more or less likely to be incompetent or miscreant than the physicians in any other state,” said Robert Oshel, PhD, a former NPDB associate director for research and an author of the report.

The differences instead reflect variations in boards’ enforcement of medical practice laws, domination of licensing boards by physicians, and inadequate budgets, he noted.

Public Citizen said Congress should change federal law to let members of the public get information from the NPDB to do a background check on physicians whom they are considering seeing or are already seeing. This would not only help individuals but also would spur state licensing boards to do their own checks with the NPDB, the group said.

“If licensing boards routinely queried the NPDB, they would not be faulted by the public and state legislators for not knowing about malpractice payments or disciplinary actions affecting their licensees and therefore not taking reasonable actions concerning their licensees found to have poor records,” the report said.
 

Questioning NPDB access for consumers

Michelle Mello, JD, PhD, a professor of law and health policy at Stanford (Calif.) University, has studied the current applications of the NPDB. In 2019, she published an article in The New England Journal of Medicine examining changes in practice patterns for clinicians who faced multiple malpractice claims.

Dr. Mello questioned what benefit consumers would get from direct access to the NPDB’s information.

“It provides almost no context for the information it reports, making it even harder for patients to make sense of what they see there,” Dr. Mello said in an interview.

Hospitals are already required to routinely query the NPDB. This legal requirement should be expanded to include licensing boards, which the report called “the last line of defense for the public from incompetent and miscreant physicians,” Public Citizen said.

“Ideally, this amendment should include free continuous query access by medical boards for all their licensees,” the report said. “In the absence of any action by Congress, individual state legislatures should require their licensing boards to query all their licensees or enroll in continuous query, as a few states already do.”

The Federation of State Medical Boards agreed with some of the other suggestions Public Citizen offered in the report. The two concur on the need for increased funding to state medical boards to ensure that they have adequate resources and staffing to fulfill their duties, FSMB said in a statement.

But FSMB disagreed with Public Citizens’ approach to ranking boards, saying it could mislead. The report lacks context about how boards’ funding and authority vary, Humayun Chaudhry, DO, FSMB’s chief executive officer, said. He also questioned the decision to focus only on serious disciplinary actions.

“The Public Citizen report does not take into account the wide range of disciplinary steps boards can take such as letters of reprimand or fines, which are often enough to stop problem behaviors – preempting further problems in the future,” Dr. Chaudhry said.
 

D.C. gets worst rating

The District of Columbia earned the worst mark in the Public Citizen ranking, holding the 51st spot, the same place it held in the group’s similar ranking on actions taken in the 2017-2019 period. There were 0.19 serious disciplinary actions per 1,000 physicians a year in Washington, Public Citizen said.

In an email to this news organization, Dr. Oshel said that the Public Citizen analysis focused on the number of licensed physicians in each state and D.C. that can be obtained and compared reliably. It avoided using the term “practicing physicians” owing in part to doubts about the reliability of these counts, he said.

As many as 20% of physicians nationwide are focused primarily on work outside of clinical care, Dr. Oshel estimated. In D.C., perhaps 40% of physicians may fall into this category. Of the more than 13,700 physicians licensed in D.C., there may be only about 8,126 actively practicing, according to Dr. Oshel.

But even using that lower estimate of practicing physicians would only raise D.C.’s ranking to 46, signaling a need for stepped-up enforcement, Dr. Oshel said.

“[Whether it’s] 46th or 51st, both are bad,” Dr. Oshel said.

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

A consumer watchdog group is pressing for broader public access to a confidential federal database that tracks disciplinary records for physicians in a new report, arguing that extra public scrutiny could pressure state medical boards to be more aggressive watchdogs.

Public Citizen’s report includes an analysis of how frequently medical boards sanctioned physicians in 2019, 2020, and 2021. These sanctions include license revocations, suspensions, voluntary surrenders of licenses, and limitations on practice while under investigation.

The report used data from the National Practitioner Data Bank (NPDB), a federal repository of reports about state licensure, discipline, and certification actions as well as medical malpractice payments. The database is closed to the public, but hospitals, malpractice insurers, and investigators can query it.

According to Public Citizen’s calculations, states most likely to take serious disciplinary action against physicians were:

• Michigan: 1.74 serious disciplinary actions per 1,000 physicians per year
• Ohio: 1.61
• North Dakota: 1.60
• Colorado: 1.55
• Arizona: 1.53
• The states least likely to do so were:
• Nevada: 0.24 serious disciplinary actions per 1,000 physicians per year
• New Hampshire: 0.25
• Georgia: 0.27
• Indiana: 0.28
• Nebraska: 0.32
• California, the largest U.S. state by both population and number of physicians, landed near the middle, ranking 27th with a rate of 0.83 serious actions per 1,000 physicians, Public Citizen said.

“There is no evidence that physicians in any state are, overall, more or less likely to be incompetent or miscreant than the physicians in any other state,” said Robert Oshel, PhD, a former NPDB associate director for research and an author of the report.

The differences instead reflect variations in boards’ enforcement of medical practice laws, domination of licensing boards by physicians, and inadequate budgets, he noted.

Public Citizen said Congress should change federal law to let members of the public get information from the NPDB to do a background check on physicians whom they are considering seeing or are already seeing. This would not only help individuals but also would spur state licensing boards to do their own checks with the NPDB, the group said.

“If licensing boards routinely queried the NPDB, they would not be faulted by the public and state legislators for not knowing about malpractice payments or disciplinary actions affecting their licensees and therefore not taking reasonable actions concerning their licensees found to have poor records,” the report said.
 

Questioning NPDB access for consumers

Michelle Mello, JD, PhD, a professor of law and health policy at Stanford (Calif.) University, has studied the current applications of the NPDB. In 2019, she published an article in The New England Journal of Medicine examining changes in practice patterns for clinicians who faced multiple malpractice claims.

Dr. Mello questioned what benefit consumers would get from direct access to the NPDB’s information.

“It provides almost no context for the information it reports, making it even harder for patients to make sense of what they see there,” Dr. Mello said in an interview.

Hospitals are already required to routinely query the NPDB. This legal requirement should be expanded to include licensing boards, which the report called “the last line of defense for the public from incompetent and miscreant physicians,” Public Citizen said.

“Ideally, this amendment should include free continuous query access by medical boards for all their licensees,” the report said. “In the absence of any action by Congress, individual state legislatures should require their licensing boards to query all their licensees or enroll in continuous query, as a few states already do.”

The Federation of State Medical Boards agreed with some of the other suggestions Public Citizen offered in the report. The two concur on the need for increased funding to state medical boards to ensure that they have adequate resources and staffing to fulfill their duties, FSMB said in a statement.

But FSMB disagreed with Public Citizens’ approach to ranking boards, saying it could mislead. The report lacks context about how boards’ funding and authority vary, Humayun Chaudhry, DO, FSMB’s chief executive officer, said. He also questioned the decision to focus only on serious disciplinary actions.

“The Public Citizen report does not take into account the wide range of disciplinary steps boards can take such as letters of reprimand or fines, which are often enough to stop problem behaviors – preempting further problems in the future,” Dr. Chaudhry said.
 

D.C. gets worst rating

The District of Columbia earned the worst mark in the Public Citizen ranking, holding the 51st spot, the same place it held in the group’s similar ranking on actions taken in the 2017-2019 period. There were 0.19 serious disciplinary actions per 1,000 physicians a year in Washington, Public Citizen said.

In an email to this news organization, Dr. Oshel said that the Public Citizen analysis focused on the number of licensed physicians in each state and D.C. that can be obtained and compared reliably. It avoided using the term “practicing physicians” owing in part to doubts about the reliability of these counts, he said.

As many as 20% of physicians nationwide are focused primarily on work outside of clinical care, Dr. Oshel estimated. In D.C., perhaps 40% of physicians may fall into this category. Of the more than 13,700 physicians licensed in D.C., there may be only about 8,126 actively practicing, according to Dr. Oshel.

But even using that lower estimate of practicing physicians would only raise D.C.’s ranking to 46, signaling a need for stepped-up enforcement, Dr. Oshel said.

“[Whether it’s] 46th or 51st, both are bad,” Dr. Oshel said.

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

A consumer watchdog group is pressing for broader public access to a confidential federal database that tracks disciplinary records for physicians in a new report, arguing that extra public scrutiny could pressure state medical boards to be more aggressive watchdogs.

Public Citizen’s report includes an analysis of how frequently medical boards sanctioned physicians in 2019, 2020, and 2021. These sanctions include license revocations, suspensions, voluntary surrenders of licenses, and limitations on practice while under investigation.

The report used data from the National Practitioner Data Bank (NPDB), a federal repository of reports about state licensure, discipline, and certification actions as well as medical malpractice payments. The database is closed to the public, but hospitals, malpractice insurers, and investigators can query it.

According to Public Citizen’s calculations, states most likely to take serious disciplinary action against physicians were:

• Michigan: 1.74 serious disciplinary actions per 1,000 physicians per year
• Ohio: 1.61
• North Dakota: 1.60
• Colorado: 1.55
• Arizona: 1.53
• The states least likely to do so were:
• Nevada: 0.24 serious disciplinary actions per 1,000 physicians per year
• New Hampshire: 0.25
• Georgia: 0.27
• Indiana: 0.28
• Nebraska: 0.32
• California, the largest U.S. state by both population and number of physicians, landed near the middle, ranking 27th with a rate of 0.83 serious actions per 1,000 physicians, Public Citizen said.

“There is no evidence that physicians in any state are, overall, more or less likely to be incompetent or miscreant than the physicians in any other state,” said Robert Oshel, PhD, a former NPDB associate director for research and an author of the report.

The differences instead reflect variations in boards’ enforcement of medical practice laws, domination of licensing boards by physicians, and inadequate budgets, he noted.

Public Citizen said Congress should change federal law to let members of the public get information from the NPDB to do a background check on physicians whom they are considering seeing or are already seeing. This would not only help individuals but also would spur state licensing boards to do their own checks with the NPDB, the group said.

“If licensing boards routinely queried the NPDB, they would not be faulted by the public and state legislators for not knowing about malpractice payments or disciplinary actions affecting their licensees and therefore not taking reasonable actions concerning their licensees found to have poor records,” the report said.
 

Questioning NPDB access for consumers

Michelle Mello, JD, PhD, a professor of law and health policy at Stanford (Calif.) University, has studied the current applications of the NPDB. In 2019, she published an article in The New England Journal of Medicine examining changes in practice patterns for clinicians who faced multiple malpractice claims.

Dr. Mello questioned what benefit consumers would get from direct access to the NPDB’s information.

“It provides almost no context for the information it reports, making it even harder for patients to make sense of what they see there,” Dr. Mello said in an interview.

Hospitals are already required to routinely query the NPDB. This legal requirement should be expanded to include licensing boards, which the report called “the last line of defense for the public from incompetent and miscreant physicians,” Public Citizen said.

“Ideally, this amendment should include free continuous query access by medical boards for all their licensees,” the report said. “In the absence of any action by Congress, individual state legislatures should require their licensing boards to query all their licensees or enroll in continuous query, as a few states already do.”

The Federation of State Medical Boards agreed with some of the other suggestions Public Citizen offered in the report. The two concur on the need for increased funding to state medical boards to ensure that they have adequate resources and staffing to fulfill their duties, FSMB said in a statement.

But FSMB disagreed with Public Citizens’ approach to ranking boards, saying it could mislead. The report lacks context about how boards’ funding and authority vary, Humayun Chaudhry, DO, FSMB’s chief executive officer, said. He also questioned the decision to focus only on serious disciplinary actions.

“The Public Citizen report does not take into account the wide range of disciplinary steps boards can take such as letters of reprimand or fines, which are often enough to stop problem behaviors – preempting further problems in the future,” Dr. Chaudhry said.
 

D.C. gets worst rating

The District of Columbia earned the worst mark in the Public Citizen ranking, holding the 51st spot, the same place it held in the group’s similar ranking on actions taken in the 2017-2019 period. There were 0.19 serious disciplinary actions per 1,000 physicians a year in Washington, Public Citizen said.

In an email to this news organization, Dr. Oshel said that the Public Citizen analysis focused on the number of licensed physicians in each state and D.C. that can be obtained and compared reliably. It avoided using the term “practicing physicians” owing in part to doubts about the reliability of these counts, he said.

As many as 20% of physicians nationwide are focused primarily on work outside of clinical care, Dr. Oshel estimated. In D.C., perhaps 40% of physicians may fall into this category. Of the more than 13,700 physicians licensed in D.C., there may be only about 8,126 actively practicing, according to Dr. Oshel.

But even using that lower estimate of practicing physicians would only raise D.C.’s ranking to 46, signaling a need for stepped-up enforcement, Dr. Oshel said.

“[Whether it’s] 46th or 51st, both are bad,” Dr. Oshel said.

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

Don’t look for the publication of a study detailing the probability of blood pressure reduction to normotensive among adults with hypertension who aren’t offered pharmacotherapy in a JAMA journal. It’s not because hypertension doesn’t respond to intentional behavior change. On the contrary, it absolutely does, but when it comes to hypertension, physicians don’t require patients to fail to manage their hypertension through personal responsibility before medications are discussed and involved.

Not so, of course, with obesity.

A few weeks ago a paper was published in JAMA Network Open entitled “Probability of 5% or greater weight loss or BMI reduction to healthy weight among adults with overweight or obesity,” which authors, peer reviewers, and editors deemed worthy of publication. Now, to be fair, it might be worthy of publication if the call to action and thrust of the paper was to chastise physicians for not offering patients effective treatments; the medical education system for failing to teach physicians how to effectively manage obesity; or, if medication is being offered, addressing the barriers to its use. Instead, the main thrust was that patients are failing to help themselves despite the known health benefits of sustained weight loss.

It’s not at all surprising that, despite known benefits, sustained weight loss without pharmacotherapy or surgery is elusive. Just as with virtually every other chronic noncommunicable disease with lifestyle levers, intentional behavior change as treatment – which, by definition for chronic diseases, needs to be employed in perpetuity – requires wide-ranging degrees of privilege and is not a reasonable expectation. And if outcomes from the FREEE trial are applicable broadly, this may be true even if the behavior change required is minimal, the cost is free, and the motivation is large.

The FREEE trial studied whether cost had a role to play in why so many people, even after a myocardial infarction, don’t follow through with the simplest of intentional behavior changes – taking prescribed medications – by providing free medications known to reduce the risk of having a second MI to study participants who had just suffered an MI.

Results showed that, although the group receiving free medications were taking more of them than the group that had a copay for them, at 1.5 years post-MI, only 41% of those receiving all their medications for free were taking them.

And what of those who have a copay? This study found that fewer than 30% of Medicare beneficiaries 65-74 years of age who were hospitalized for heart attacks filled their new statin prescriptions within 90 days of discharge. That the vast majority of patients who’d had actual heart attacks didn’t even take on the behavior change of simply filling their prescription for, let alone taking, a medication shown to reduce their risk of having another heart attack, speaks to the folly of believing that knowledge drives behavior change.

The message is that human beings, even when faced with knowledge – and in the aforementioned studies, knowledge coupled with a very real glimpse of personal mortality – struggle to deploy the most basic of behavior changes. And yet here we have a paper that concludes with the inference of surprise that few people, without treatment, lost clinically meaningful amounts of weight “despite the known benefits of clinically meaningful weight loss.”

While this paper does suggest in passing that yes, maybe we should offer effective treatments to patients with obesity, medicine needs to stop framing obesity as some surprising personal-responsibility knowledge gap and instead focus on the real problems at hand: the barriers to physicians treating obesity as they do every other chronic noncommunicable disease; why, unlike hypertension, for example, primary care providers are generally not well trained in its effective management; and why those who aren’t, despite obesity’s prevalence and impact, don’t see it as worthwhile to go out of their way to learn.

Dr. Freedhoff is an associate professor in the department of family medicine at the University of Ottawa (Ont.) and medical director of the Bariatric Medical Institute, also in Ottawa. He reported conflicts of interest with Constant Health, Novo Nordisk, and Weighty Matters.

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

Don’t look for the publication of a study detailing the probability of blood pressure reduction to normotensive among adults with hypertension who aren’t offered pharmacotherapy in a JAMA journal. It’s not because hypertension doesn’t respond to intentional behavior change. On the contrary, it absolutely does, but when it comes to hypertension, physicians don’t require patients to fail to manage their hypertension through personal responsibility before medications are discussed and involved.

Not so, of course, with obesity.

A few weeks ago a paper was published in JAMA Network Open entitled “Probability of 5% or greater weight loss or BMI reduction to healthy weight among adults with overweight or obesity,” which authors, peer reviewers, and editors deemed worthy of publication. Now, to be fair, it might be worthy of publication if the call to action and thrust of the paper was to chastise physicians for not offering patients effective treatments; the medical education system for failing to teach physicians how to effectively manage obesity; or, if medication is being offered, addressing the barriers to its use. Instead, the main thrust was that patients are failing to help themselves despite the known health benefits of sustained weight loss.

It’s not at all surprising that, despite known benefits, sustained weight loss without pharmacotherapy or surgery is elusive. Just as with virtually every other chronic noncommunicable disease with lifestyle levers, intentional behavior change as treatment – which, by definition for chronic diseases, needs to be employed in perpetuity – requires wide-ranging degrees of privilege and is not a reasonable expectation. And if outcomes from the FREEE trial are applicable broadly, this may be true even if the behavior change required is minimal, the cost is free, and the motivation is large.

The FREEE trial studied whether cost had a role to play in why so many people, even after a myocardial infarction, don’t follow through with the simplest of intentional behavior changes – taking prescribed medications – by providing free medications known to reduce the risk of having a second MI to study participants who had just suffered an MI.

Results showed that, although the group receiving free medications were taking more of them than the group that had a copay for them, at 1.5 years post-MI, only 41% of those receiving all their medications for free were taking them.

And what of those who have a copay? This study found that fewer than 30% of Medicare beneficiaries 65-74 years of age who were hospitalized for heart attacks filled their new statin prescriptions within 90 days of discharge. That the vast majority of patients who’d had actual heart attacks didn’t even take on the behavior change of simply filling their prescription for, let alone taking, a medication shown to reduce their risk of having another heart attack, speaks to the folly of believing that knowledge drives behavior change.

The message is that human beings, even when faced with knowledge – and in the aforementioned studies, knowledge coupled with a very real glimpse of personal mortality – struggle to deploy the most basic of behavior changes. And yet here we have a paper that concludes with the inference of surprise that few people, without treatment, lost clinically meaningful amounts of weight “despite the known benefits of clinically meaningful weight loss.”

While this paper does suggest in passing that yes, maybe we should offer effective treatments to patients with obesity, medicine needs to stop framing obesity as some surprising personal-responsibility knowledge gap and instead focus on the real problems at hand: the barriers to physicians treating obesity as they do every other chronic noncommunicable disease; why, unlike hypertension, for example, primary care providers are generally not well trained in its effective management; and why those who aren’t, despite obesity’s prevalence and impact, don’t see it as worthwhile to go out of their way to learn.

Dr. Freedhoff is an associate professor in the department of family medicine at the University of Ottawa (Ont.) and medical director of the Bariatric Medical Institute, also in Ottawa. He reported conflicts of interest with Constant Health, Novo Nordisk, and Weighty Matters.

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

Don’t look for the publication of a study detailing the probability of blood pressure reduction to normotensive among adults with hypertension who aren’t offered pharmacotherapy in a JAMA journal. It’s not because hypertension doesn’t respond to intentional behavior change. On the contrary, it absolutely does, but when it comes to hypertension, physicians don’t require patients to fail to manage their hypertension through personal responsibility before medications are discussed and involved.

Not so, of course, with obesity.

A few weeks ago a paper was published in JAMA Network Open entitled “Probability of 5% or greater weight loss or BMI reduction to healthy weight among adults with overweight or obesity,” which authors, peer reviewers, and editors deemed worthy of publication. Now, to be fair, it might be worthy of publication if the call to action and thrust of the paper was to chastise physicians for not offering patients effective treatments; the medical education system for failing to teach physicians how to effectively manage obesity; or, if medication is being offered, addressing the barriers to its use. Instead, the main thrust was that patients are failing to help themselves despite the known health benefits of sustained weight loss.

It’s not at all surprising that, despite known benefits, sustained weight loss without pharmacotherapy or surgery is elusive. Just as with virtually every other chronic noncommunicable disease with lifestyle levers, intentional behavior change as treatment – which, by definition for chronic diseases, needs to be employed in perpetuity – requires wide-ranging degrees of privilege and is not a reasonable expectation. And if outcomes from the FREEE trial are applicable broadly, this may be true even if the behavior change required is minimal, the cost is free, and the motivation is large.

The FREEE trial studied whether cost had a role to play in why so many people, even after a myocardial infarction, don’t follow through with the simplest of intentional behavior changes – taking prescribed medications – by providing free medications known to reduce the risk of having a second MI to study participants who had just suffered an MI.

Results showed that, although the group receiving free medications were taking more of them than the group that had a copay for them, at 1.5 years post-MI, only 41% of those receiving all their medications for free were taking them.

And what of those who have a copay? This study found that fewer than 30% of Medicare beneficiaries 65-74 years of age who were hospitalized for heart attacks filled their new statin prescriptions within 90 days of discharge. That the vast majority of patients who’d had actual heart attacks didn’t even take on the behavior change of simply filling their prescription for, let alone taking, a medication shown to reduce their risk of having another heart attack, speaks to the folly of believing that knowledge drives behavior change.

The message is that human beings, even when faced with knowledge – and in the aforementioned studies, knowledge coupled with a very real glimpse of personal mortality – struggle to deploy the most basic of behavior changes. And yet here we have a paper that concludes with the inference of surprise that few people, without treatment, lost clinically meaningful amounts of weight “despite the known benefits of clinically meaningful weight loss.”

While this paper does suggest in passing that yes, maybe we should offer effective treatments to patients with obesity, medicine needs to stop framing obesity as some surprising personal-responsibility knowledge gap and instead focus on the real problems at hand: the barriers to physicians treating obesity as they do every other chronic noncommunicable disease; why, unlike hypertension, for example, primary care providers are generally not well trained in its effective management; and why those who aren’t, despite obesity’s prevalence and impact, don’t see it as worthwhile to go out of their way to learn.

Dr. Freedhoff is an associate professor in the department of family medicine at the University of Ottawa (Ont.) and medical director of the Bariatric Medical Institute, also in Ottawa. He reported conflicts of interest with Constant Health, Novo Nordisk, and Weighty Matters.

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

A single injection of the GLP-1 receptor agonist liraglutide led to short-term normalization of associative learning in people with obesity and insulin resistance, a finding that suggests dopamine-driven learning processes are modified by metabolic signaling and that this effect “may contribute to the weight-reducing effects of liraglutide in obesity,” say the authors of a recent report in Nature Metabolism.
 

“We demonstrated that dopamine-driven associative learning about external sensory cues crucially depends on metabolic signaling,” said Marc Tittgemeyer, PhD, professor at the Max Planck Institute for Metabolism Research in Cologne, Germany, and senior author of the study. Study participants with impaired insulin sensitivity “exhibited a reduced amplitude of behavioral updating that was normalized” by a single subcutaneous injection of 0.6 mg of liraglutide (the starting daily dose for liraglutide for weight loss, available as Saxenda, Novo Nordisk) given the evening before testing.

The findings, from 30 adults with normal insulin sensitivity and normal weight and 24 adults with impaired insulin sensitivity and obesity, suggest that metabolic signals, particularly ones that promote energy restoration in a setting of energy deprivation caused by insulin or a glucagon-like peptide-1 (GLP-1) receptor agonist, “profoundly influence neuronal processing,” said Dr. Tittgemeyer. The findings suggest that impaired metabolic signaling such as occurs with insulin resistance in people with obesity can cause deficiencies in associative learning.
 

‘Liraglutide can normalize learning of associations’

“We show that in people with obesity, disrupted circuit mechanisms lead to impaired learning about sensory associations,” Dr. Tittgemeyer said in an interview. “The information provided by sensory systems that the brain must interpret to select a behavioral response are ‘off tune’ ” in these individuals.

“This is rather consequential for understanding food-intake behaviors. Modern obesity treatments, such as liraglutide, can normalize learning of associations and thereby render people susceptible again for sensory signals and make them more prone to react to subliminal interactions, such as weight-normalizing diets and conscious eating,” he added.

The normalization in associative learning that one dose of liraglutide produced in people with obesity “fits with studies showing that these drugs restore a normal feeling of satiety, causing people to eat less and therefore lose weight,” he explained.

Dr. Tittgemeyer noted that this effect is likely shared by other agents in the GLP-1 receptor agonist class, such as semaglutide (Ozempic, Wegovy, Novo Nordisk) but is likely not an effect when agents agonize receptors to other nutrient-stimulated hormones such as glucagon and the glucose-dependent insulinotropic polypeptide.

The findings “show that liraglutide restores associative learning in participants with greater insulin resistance,” a “highly relevant” discovery, commented Nils B. Kroemer, PhD, head of the section of medical psychology at the University of Bonn, Germany, who was not involved with this research, in a written statement.

The study run by Dr. Tittgemeyer and his associates included 54 healthy adult volunteers whom they assessed for insulin sensitivity with their homeostasis model assessment of insulin resistance. The researchers divided the cohort into groups; one group included 24 people with impaired insulin sensitivity, and one included 30 with normal insulin sensitivity. The average body mass index (BMI) of the normal sensitivity group was about 24 kg/m²; in the insulin-resistant subgroup, BMI averaged about 33 kg/m².

The associative learning task tested the ability of participants to learn associations between auditory cues (a high or low tone) and a subsequent visual outcome (a picture of a face or a house). During each associative learning session, participants also underwent functional MRI of the brain.
 

Liraglutide treatment leveled learning

The results showed that the learning rate was significantly lower in the subgroup with impaired insulin sensitivity, compared with those with normal insulin sensitivity following treatment with a placebo injection. This indicates a decreased adaptation of learning to predictability variations in individuals with impaired insulin sensitivity.

In contrast, treatment with a single dose of liraglutide significantly enhanced the learning rate in the group with impaired insulin sensitivity but significantly reduced the learning rate in the group with normal insulin sensitivity. Liraglutide’s effect was twice as large in the group with impaired insulin sensitivity than in the group with normal insulin sensitivity, and these opposing effects of liraglutide resulted in a convergence of the two groups’ adaptive learning rates so that there wasn’t any significant between-group difference following liraglutide treatment.

After analyzing the functional MRI data along with the learning results, the researchers concluded that liraglutide normalized learning in individuals with impaired insulin sensitivity by enhancing adaptive prediction error encoding in the brain’s ventral striatum and mesocortical projection sites.

This apparent ability of GLP-1 analogues to correct this learning deficit in people with impaired insulin sensitivity and obesity has implications regarding potential benefit for people with other pathologies characterized by impaired dopaminergic function and associated with metabolic impairments, such as psychosis, Parkinson’s disease, and depression, the researchers say.

“The fascinating thing about GLP-1 receptor agonists is that they have an additional mechanism that relates to anti-inflammatory effects, especially for alleviating cell stress,” said Dr. Tittgemeyer. “Many ongoing clinical trials are assessing their effects in neuropsychiatric diseases,” he noted.

The study received no commercial funding. Dr. Tittgemyer and most of his coauthors had no disclosures. One coauthor had several disclosures, which are detailed in the report. Dr. Kroemer had no disclosures.

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

A single injection of the GLP-1 receptor agonist liraglutide led to short-term normalization of associative learning in people with obesity and insulin resistance, a finding that suggests dopamine-driven learning processes are modified by metabolic signaling and that this effect “may contribute to the weight-reducing effects of liraglutide in obesity,” say the authors of a recent report in Nature Metabolism.
 

“We demonstrated that dopamine-driven associative learning about external sensory cues crucially depends on metabolic signaling,” said Marc Tittgemeyer, PhD, professor at the Max Planck Institute for Metabolism Research in Cologne, Germany, and senior author of the study. Study participants with impaired insulin sensitivity “exhibited a reduced amplitude of behavioral updating that was normalized” by a single subcutaneous injection of 0.6 mg of liraglutide (the starting daily dose for liraglutide for weight loss, available as Saxenda, Novo Nordisk) given the evening before testing.

The findings, from 30 adults with normal insulin sensitivity and normal weight and 24 adults with impaired insulin sensitivity and obesity, suggest that metabolic signals, particularly ones that promote energy restoration in a setting of energy deprivation caused by insulin or a glucagon-like peptide-1 (GLP-1) receptor agonist, “profoundly influence neuronal processing,” said Dr. Tittgemeyer. The findings suggest that impaired metabolic signaling such as occurs with insulin resistance in people with obesity can cause deficiencies in associative learning.
 

‘Liraglutide can normalize learning of associations’

“We show that in people with obesity, disrupted circuit mechanisms lead to impaired learning about sensory associations,” Dr. Tittgemeyer said in an interview. “The information provided by sensory systems that the brain must interpret to select a behavioral response are ‘off tune’ ” in these individuals.

“This is rather consequential for understanding food-intake behaviors. Modern obesity treatments, such as liraglutide, can normalize learning of associations and thereby render people susceptible again for sensory signals and make them more prone to react to subliminal interactions, such as weight-normalizing diets and conscious eating,” he added.

The normalization in associative learning that one dose of liraglutide produced in people with obesity “fits with studies showing that these drugs restore a normal feeling of satiety, causing people to eat less and therefore lose weight,” he explained.

Dr. Tittgemeyer noted that this effect is likely shared by other agents in the GLP-1 receptor agonist class, such as semaglutide (Ozempic, Wegovy, Novo Nordisk) but is likely not an effect when agents agonize receptors to other nutrient-stimulated hormones such as glucagon and the glucose-dependent insulinotropic polypeptide.

The findings “show that liraglutide restores associative learning in participants with greater insulin resistance,” a “highly relevant” discovery, commented Nils B. Kroemer, PhD, head of the section of medical psychology at the University of Bonn, Germany, who was not involved with this research, in a written statement.

The study run by Dr. Tittgemeyer and his associates included 54 healthy adult volunteers whom they assessed for insulin sensitivity with their homeostasis model assessment of insulin resistance. The researchers divided the cohort into groups; one group included 24 people with impaired insulin sensitivity, and one included 30 with normal insulin sensitivity. The average body mass index (BMI) of the normal sensitivity group was about 24 kg/m²; in the insulin-resistant subgroup, BMI averaged about 33 kg/m².

The associative learning task tested the ability of participants to learn associations between auditory cues (a high or low tone) and a subsequent visual outcome (a picture of a face or a house). During each associative learning session, participants also underwent functional MRI of the brain.
 

Liraglutide treatment leveled learning

The results showed that the learning rate was significantly lower in the subgroup with impaired insulin sensitivity, compared with those with normal insulin sensitivity following treatment with a placebo injection. This indicates a decreased adaptation of learning to predictability variations in individuals with impaired insulin sensitivity.

In contrast, treatment with a single dose of liraglutide significantly enhanced the learning rate in the group with impaired insulin sensitivity but significantly reduced the learning rate in the group with normal insulin sensitivity. Liraglutide’s effect was twice as large in the group with impaired insulin sensitivity than in the group with normal insulin sensitivity, and these opposing effects of liraglutide resulted in a convergence of the two groups’ adaptive learning rates so that there wasn’t any significant between-group difference following liraglutide treatment.

After analyzing the functional MRI data along with the learning results, the researchers concluded that liraglutide normalized learning in individuals with impaired insulin sensitivity by enhancing adaptive prediction error encoding in the brain’s ventral striatum and mesocortical projection sites.

This apparent ability of GLP-1 analogues to correct this learning deficit in people with impaired insulin sensitivity and obesity has implications regarding potential benefit for people with other pathologies characterized by impaired dopaminergic function and associated with metabolic impairments, such as psychosis, Parkinson’s disease, and depression, the researchers say.

“The fascinating thing about GLP-1 receptor agonists is that they have an additional mechanism that relates to anti-inflammatory effects, especially for alleviating cell stress,” said Dr. Tittgemeyer. “Many ongoing clinical trials are assessing their effects in neuropsychiatric diseases,” he noted.

The study received no commercial funding. Dr. Tittgemyer and most of his coauthors had no disclosures. One coauthor had several disclosures, which are detailed in the report. Dr. Kroemer had no disclosures.

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

A single injection of the GLP-1 receptor agonist liraglutide led to short-term normalization of associative learning in people with obesity and insulin resistance, a finding that suggests dopamine-driven learning processes are modified by metabolic signaling and that this effect “may contribute to the weight-reducing effects of liraglutide in obesity,” say the authors of a recent report in Nature Metabolism.
 

“We demonstrated that dopamine-driven associative learning about external sensory cues crucially depends on metabolic signaling,” said Marc Tittgemeyer, PhD, professor at the Max Planck Institute for Metabolism Research in Cologne, Germany, and senior author of the study. Study participants with impaired insulin sensitivity “exhibited a reduced amplitude of behavioral updating that was normalized” by a single subcutaneous injection of 0.6 mg of liraglutide (the starting daily dose for liraglutide for weight loss, available as Saxenda, Novo Nordisk) given the evening before testing.

The findings, from 30 adults with normal insulin sensitivity and normal weight and 24 adults with impaired insulin sensitivity and obesity, suggest that metabolic signals, particularly ones that promote energy restoration in a setting of energy deprivation caused by insulin or a glucagon-like peptide-1 (GLP-1) receptor agonist, “profoundly influence neuronal processing,” said Dr. Tittgemeyer. The findings suggest that impaired metabolic signaling such as occurs with insulin resistance in people with obesity can cause deficiencies in associative learning.
 

‘Liraglutide can normalize learning of associations’

“We show that in people with obesity, disrupted circuit mechanisms lead to impaired learning about sensory associations,” Dr. Tittgemeyer said in an interview. “The information provided by sensory systems that the brain must interpret to select a behavioral response are ‘off tune’ ” in these individuals.

“This is rather consequential for understanding food-intake behaviors. Modern obesity treatments, such as liraglutide, can normalize learning of associations and thereby render people susceptible again for sensory signals and make them more prone to react to subliminal interactions, such as weight-normalizing diets and conscious eating,” he added.

The normalization in associative learning that one dose of liraglutide produced in people with obesity “fits with studies showing that these drugs restore a normal feeling of satiety, causing people to eat less and therefore lose weight,” he explained.

Dr. Tittgemeyer noted that this effect is likely shared by other agents in the GLP-1 receptor agonist class, such as semaglutide (Ozempic, Wegovy, Novo Nordisk) but is likely not an effect when agents agonize receptors to other nutrient-stimulated hormones such as glucagon and the glucose-dependent insulinotropic polypeptide.

The findings “show that liraglutide restores associative learning in participants with greater insulin resistance,” a “highly relevant” discovery, commented Nils B. Kroemer, PhD, head of the section of medical psychology at the University of Bonn, Germany, who was not involved with this research, in a written statement.

The study run by Dr. Tittgemeyer and his associates included 54 healthy adult volunteers whom they assessed for insulin sensitivity with their homeostasis model assessment of insulin resistance. The researchers divided the cohort into groups; one group included 24 people with impaired insulin sensitivity, and one included 30 with normal insulin sensitivity. The average body mass index (BMI) of the normal sensitivity group was about 24 kg/m²; in the insulin-resistant subgroup, BMI averaged about 33 kg/m².

The associative learning task tested the ability of participants to learn associations between auditory cues (a high or low tone) and a subsequent visual outcome (a picture of a face or a house). During each associative learning session, participants also underwent functional MRI of the brain.
 

Liraglutide treatment leveled learning

The results showed that the learning rate was significantly lower in the subgroup with impaired insulin sensitivity, compared with those with normal insulin sensitivity following treatment with a placebo injection. This indicates a decreased adaptation of learning to predictability variations in individuals with impaired insulin sensitivity.

In contrast, treatment with a single dose of liraglutide significantly enhanced the learning rate in the group with impaired insulin sensitivity but significantly reduced the learning rate in the group with normal insulin sensitivity. Liraglutide’s effect was twice as large in the group with impaired insulin sensitivity than in the group with normal insulin sensitivity, and these opposing effects of liraglutide resulted in a convergence of the two groups’ adaptive learning rates so that there wasn’t any significant between-group difference following liraglutide treatment.

After analyzing the functional MRI data along with the learning results, the researchers concluded that liraglutide normalized learning in individuals with impaired insulin sensitivity by enhancing adaptive prediction error encoding in the brain’s ventral striatum and mesocortical projection sites.

This apparent ability of GLP-1 analogues to correct this learning deficit in people with impaired insulin sensitivity and obesity has implications regarding potential benefit for people with other pathologies characterized by impaired dopaminergic function and associated with metabolic impairments, such as psychosis, Parkinson’s disease, and depression, the researchers say.

“The fascinating thing about GLP-1 receptor agonists is that they have an additional mechanism that relates to anti-inflammatory effects, especially for alleviating cell stress,” said Dr. Tittgemeyer. “Many ongoing clinical trials are assessing their effects in neuropsychiatric diseases,” he noted.

The study received no commercial funding. Dr. Tittgemyer and most of his coauthors had no disclosures. One coauthor had several disclosures, which are detailed in the report. Dr. Kroemer had no disclosures.

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

Apple cider vinegar and fenugreek seeds are the most effective at reducing fasting blood glucose and hemoglobin A1c levels, compared with four other popular herbal remedies for type 2 diabetes, a recent systematic review found.

The review included 44 randomized clinical trials with more than 3,000 participants using six herbal remedies: apple cider vinegar, cinnamon, curcumin, fenugreek seeds, ginger, and saffron.

Apple cider vinegar, fenugreek seeds, curcumin (turmeric), and cinnamon resulted in statistically significant reductions in fasting blood glucose, compared with the control groups in the clinical trials. Out of all the remedies, the authors found apple cider vinegar to be the most effective for lowering fasting blood glucose levels.

The review also found that apple cider vinegar and fenugreek seeds had a statistically significant effect on reducing A1c, compared with the control groups. The authors found the herbal remedies made no difference to insulin level or homeostatic model assessment for insulin resistance (HOMA-IR).

The results are published online in Diabetes & Metabolic Syndrome: Clinical Research & Reviews. The authors said they hoped the review would help medical professionals and people with type 2 diabetes understand the effectiveness of different herbal remedies and consider incorporating these remedies into standard care.

“Some people use curcumin, some use ginger, some use apple cider [vinegar], but it’s not clear which is better,” said Shiv Mudgal, PhD, corresponding author of the paper and an associate professor in nursing at the All India Institute of Medical Sciences in Deoghar, India.

“We thought it would be nice to get some idea about how they work and how they compete with each other,” said Subodh Kumar, MD, the first author and an associate professor in pharmacology at the All India Institute of Medical Sciences in Deoghar, India.

They wanted to understand how the herbal remedies worked by including insulin level and HOMA-IR as measurable outcomes but found nothing conclusive. Instead, they speculated that the effect of apple cider vinegar and fenugreek seeds on blood glucose and A1c could be related to delayed gastric emptying, among other mechanisms.

However, the results should be interpreted with caution, said Dr. Kumar.

Apple cider vinegar had three clinical trials to back the finding, and fenugreek seeds had four studies supporting the results – fewer than the other included remedies. The authors also identified risks of bias from the randomization process and the allocation concealment process in several of the included trials.

Most of the studies included only short follow-up periods, meaning that the long-term effects of using these herbal remedies to help manage type 2 diabetes remain unclear.

The six herbal remedies included in the study were chosen out of dozens of popular complementary medicines for the strength and number of clinical trials backing their use.

The limited number included in the review is a drawback, according to Merlin Willcox, DPhil, a clinical lecturer in general practice at the University of Southampton, England, who was not involved in the research.

“It means they’ve left out stuff that’s potentially effective,” Dr. Willcox said in an interview.

Dr. Willcox, who has coauthored a review of herbal remedies for glycemic control in type 2 diabetes, said he was surprised that apple cider vinegar came out on top in this analysis.

His review concluded that aloe vera leaf gel, psyllium fiber, and fenugreek seeds appeared to be the most effective at reducing A1c, compared with the control groups of the included trials, out of 18 plant-based remedies.

There were no adverse effects associated with the herbal remedies, according to Dr. Mudgal. However, the evidence for the herbal remedies included in their review also lacked substantial follow-up periods assessing their long-term effects.

“You need to look at the evidence for each individual remedy; it’s not just about what plant it is, but it’s about what preparation, what dose. All of that comes into play,” Dr. Willcox said.

Up to 3.6 million people use herbal remedies to manage type 2 diabetes in the United States, according to a 2014 study cited by the review authors. The number is much higher elsewhere: As many as two-thirds of patients with diabetes in India and Saudi Arabia incorporate herbal remedies to help manage symptoms, whereas about half of patients with diabetes in the United Kingdom use herbal medicines.

Experts warn of the risks associated with using herbal medicines to complement traditional therapies.

“I caution my patients about dietary supplements and herbals because of the lack of high-quality data demonstrating efficacy and safety,” Katherine H. Saunders, MD, DABOM, cofounder of Intellihealth and clinical assistant professor of medicine at Weill Cornell Medicine, New York, said in an interview.

For Dr. Willcox, the risks relate to where patients get their information from. Many patients with type 2 diabetes are too scared to talk to their doctor about herbal medicines. 

“They think their doctor is going to be negative or dismissive,” Dr. Willcox said. “So patients are getting their information from family and friends or from the Internet, which is not necessarily the most reliable, evidence-based source of information.”

The authors have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Apple cider vinegar and fenugreek seeds are the most effective at reducing fasting blood glucose and hemoglobin A1c levels, compared with four other popular herbal remedies for type 2 diabetes, a recent systematic review found.

The review included 44 randomized clinical trials with more than 3,000 participants using six herbal remedies: apple cider vinegar, cinnamon, curcumin, fenugreek seeds, ginger, and saffron.

Apple cider vinegar, fenugreek seeds, curcumin (turmeric), and cinnamon resulted in statistically significant reductions in fasting blood glucose, compared with the control groups in the clinical trials. Out of all the remedies, the authors found apple cider vinegar to be the most effective for lowering fasting blood glucose levels.

The review also found that apple cider vinegar and fenugreek seeds had a statistically significant effect on reducing A1c, compared with the control groups. The authors found the herbal remedies made no difference to insulin level or homeostatic model assessment for insulin resistance (HOMA-IR).

The results are published online in Diabetes & Metabolic Syndrome: Clinical Research & Reviews. The authors said they hoped the review would help medical professionals and people with type 2 diabetes understand the effectiveness of different herbal remedies and consider incorporating these remedies into standard care.

“Some people use curcumin, some use ginger, some use apple cider [vinegar], but it’s not clear which is better,” said Shiv Mudgal, PhD, corresponding author of the paper and an associate professor in nursing at the All India Institute of Medical Sciences in Deoghar, India.

“We thought it would be nice to get some idea about how they work and how they compete with each other,” said Subodh Kumar, MD, the first author and an associate professor in pharmacology at the All India Institute of Medical Sciences in Deoghar, India.

They wanted to understand how the herbal remedies worked by including insulin level and HOMA-IR as measurable outcomes but found nothing conclusive. Instead, they speculated that the effect of apple cider vinegar and fenugreek seeds on blood glucose and A1c could be related to delayed gastric emptying, among other mechanisms.

However, the results should be interpreted with caution, said Dr. Kumar.

Apple cider vinegar had three clinical trials to back the finding, and fenugreek seeds had four studies supporting the results – fewer than the other included remedies. The authors also identified risks of bias from the randomization process and the allocation concealment process in several of the included trials.

Most of the studies included only short follow-up periods, meaning that the long-term effects of using these herbal remedies to help manage type 2 diabetes remain unclear.

The six herbal remedies included in the study were chosen out of dozens of popular complementary medicines for the strength and number of clinical trials backing their use.

The limited number included in the review is a drawback, according to Merlin Willcox, DPhil, a clinical lecturer in general practice at the University of Southampton, England, who was not involved in the research.

“It means they’ve left out stuff that’s potentially effective,” Dr. Willcox said in an interview.

Dr. Willcox, who has coauthored a review of herbal remedies for glycemic control in type 2 diabetes, said he was surprised that apple cider vinegar came out on top in this analysis.

His review concluded that aloe vera leaf gel, psyllium fiber, and fenugreek seeds appeared to be the most effective at reducing A1c, compared with the control groups of the included trials, out of 18 plant-based remedies.

There were no adverse effects associated with the herbal remedies, according to Dr. Mudgal. However, the evidence for the herbal remedies included in their review also lacked substantial follow-up periods assessing their long-term effects.

“You need to look at the evidence for each individual remedy; it’s not just about what plant it is, but it’s about what preparation, what dose. All of that comes into play,” Dr. Willcox said.

Up to 3.6 million people use herbal remedies to manage type 2 diabetes in the United States, according to a 2014 study cited by the review authors. The number is much higher elsewhere: As many as two-thirds of patients with diabetes in India and Saudi Arabia incorporate herbal remedies to help manage symptoms, whereas about half of patients with diabetes in the United Kingdom use herbal medicines.

Experts warn of the risks associated with using herbal medicines to complement traditional therapies.

“I caution my patients about dietary supplements and herbals because of the lack of high-quality data demonstrating efficacy and safety,” Katherine H. Saunders, MD, DABOM, cofounder of Intellihealth and clinical assistant professor of medicine at Weill Cornell Medicine, New York, said in an interview.

For Dr. Willcox, the risks relate to where patients get their information from. Many patients with type 2 diabetes are too scared to talk to their doctor about herbal medicines. 

“They think their doctor is going to be negative or dismissive,” Dr. Willcox said. “So patients are getting their information from family and friends or from the Internet, which is not necessarily the most reliable, evidence-based source of information.”

The authors have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Apple cider vinegar and fenugreek seeds are the most effective at reducing fasting blood glucose and hemoglobin A1c levels, compared with four other popular herbal remedies for type 2 diabetes, a recent systematic review found.

The review included 44 randomized clinical trials with more than 3,000 participants using six herbal remedies: apple cider vinegar, cinnamon, curcumin, fenugreek seeds, ginger, and saffron.

Apple cider vinegar, fenugreek seeds, curcumin (turmeric), and cinnamon resulted in statistically significant reductions in fasting blood glucose, compared with the control groups in the clinical trials. Out of all the remedies, the authors found apple cider vinegar to be the most effective for lowering fasting blood glucose levels.

The review also found that apple cider vinegar and fenugreek seeds had a statistically significant effect on reducing A1c, compared with the control groups. The authors found the herbal remedies made no difference to insulin level or homeostatic model assessment for insulin resistance (HOMA-IR).

The results are published online in Diabetes & Metabolic Syndrome: Clinical Research & Reviews. The authors said they hoped the review would help medical professionals and people with type 2 diabetes understand the effectiveness of different herbal remedies and consider incorporating these remedies into standard care.

“Some people use curcumin, some use ginger, some use apple cider [vinegar], but it’s not clear which is better,” said Shiv Mudgal, PhD, corresponding author of the paper and an associate professor in nursing at the All India Institute of Medical Sciences in Deoghar, India.

“We thought it would be nice to get some idea about how they work and how they compete with each other,” said Subodh Kumar, MD, the first author and an associate professor in pharmacology at the All India Institute of Medical Sciences in Deoghar, India.

They wanted to understand how the herbal remedies worked by including insulin level and HOMA-IR as measurable outcomes but found nothing conclusive. Instead, they speculated that the effect of apple cider vinegar and fenugreek seeds on blood glucose and A1c could be related to delayed gastric emptying, among other mechanisms.

However, the results should be interpreted with caution, said Dr. Kumar.

Apple cider vinegar had three clinical trials to back the finding, and fenugreek seeds had four studies supporting the results – fewer than the other included remedies. The authors also identified risks of bias from the randomization process and the allocation concealment process in several of the included trials.

Most of the studies included only short follow-up periods, meaning that the long-term effects of using these herbal remedies to help manage type 2 diabetes remain unclear.

The six herbal remedies included in the study were chosen out of dozens of popular complementary medicines for the strength and number of clinical trials backing their use.

The limited number included in the review is a drawback, according to Merlin Willcox, DPhil, a clinical lecturer in general practice at the University of Southampton, England, who was not involved in the research.

“It means they’ve left out stuff that’s potentially effective,” Dr. Willcox said in an interview.

Dr. Willcox, who has coauthored a review of herbal remedies for glycemic control in type 2 diabetes, said he was surprised that apple cider vinegar came out on top in this analysis.

His review concluded that aloe vera leaf gel, psyllium fiber, and fenugreek seeds appeared to be the most effective at reducing A1c, compared with the control groups of the included trials, out of 18 plant-based remedies.

There were no adverse effects associated with the herbal remedies, according to Dr. Mudgal. However, the evidence for the herbal remedies included in their review also lacked substantial follow-up periods assessing their long-term effects.

“You need to look at the evidence for each individual remedy; it’s not just about what plant it is, but it’s about what preparation, what dose. All of that comes into play,” Dr. Willcox said.

Up to 3.6 million people use herbal remedies to manage type 2 diabetes in the United States, according to a 2014 study cited by the review authors. The number is much higher elsewhere: As many as two-thirds of patients with diabetes in India and Saudi Arabia incorporate herbal remedies to help manage symptoms, whereas about half of patients with diabetes in the United Kingdom use herbal medicines.

Experts warn of the risks associated with using herbal medicines to complement traditional therapies.

“I caution my patients about dietary supplements and herbals because of the lack of high-quality data demonstrating efficacy and safety,” Katherine H. Saunders, MD, DABOM, cofounder of Intellihealth and clinical assistant professor of medicine at Weill Cornell Medicine, New York, said in an interview.

For Dr. Willcox, the risks relate to where patients get their information from. Many patients with type 2 diabetes are too scared to talk to their doctor about herbal medicines. 

“They think their doctor is going to be negative or dismissive,” Dr. Willcox said. “So patients are getting their information from family and friends or from the Internet, which is not necessarily the most reliable, evidence-based source of information.”

The authors have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone – having a blood glucose level below 140 mg/dL – than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Mark Ebell, MD, a professor of epidemiology at the University of Georgia, Athens, was more skeptical, pointing out that study participants might have used other methods in addition to the technology to lower their blood sugar levels.

The findings suggest that insulin pumps are more manageable than multiple, daily self-injections. About 1 in 9 women have diabetes in the United States, and 35% of people newly diagnosed with the condition are women of reproductive age.

Dr. Hamill said that in future research, use of a stricter criterion for baseline blood sugar levels (< 140 mg/dL) would be helpful, as would exploring how much time patients need to spend below that level for optimal outcomes.

“Those questions are really absent in the literature,” Dr. Hamill said. “Most of our obstetrical literature is comparing treatment types. All those things are secondary. It’s the blood sugar that confers the risk, and if we get the blood sugar better, risk is reduced.”

Dr. Hamill added that the benefits of these technologies for patients with gestational diabetes are unclear in consideration of the limited duration of the disease and the time required to implant or install a monitor and pump, as well as associated risks and the cost of the devices.

Dr. Sodhi said clinicians who see patients during family planning visits should review morbidities and medical problems related to diabetes.

“I think this is a study that’s maybe too early,” Dr. Sodhi said. “They did ‘guesstimates’ on what target blood glucose ranges to be looking at, but I think over time, we might, with more studies like this, be building a case to try to put these types of monitors in for patients who are young for the purpose of optimizing pregnancy outcomes.”

The authors have disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone – having a blood glucose level below 140 mg/dL – than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Mark Ebell, MD, a professor of epidemiology at the University of Georgia, Athens, was more skeptical, pointing out that study participants might have used other methods in addition to the technology to lower their blood sugar levels.

The findings suggest that insulin pumps are more manageable than multiple, daily self-injections. About 1 in 9 women have diabetes in the United States, and 35% of people newly diagnosed with the condition are women of reproductive age.

Dr. Hamill said that in future research, use of a stricter criterion for baseline blood sugar levels (< 140 mg/dL) would be helpful, as would exploring how much time patients need to spend below that level for optimal outcomes.

“Those questions are really absent in the literature,” Dr. Hamill said. “Most of our obstetrical literature is comparing treatment types. All those things are secondary. It’s the blood sugar that confers the risk, and if we get the blood sugar better, risk is reduced.”

Dr. Hamill added that the benefits of these technologies for patients with gestational diabetes are unclear in consideration of the limited duration of the disease and the time required to implant or install a monitor and pump, as well as associated risks and the cost of the devices.

Dr. Sodhi said clinicians who see patients during family planning visits should review morbidities and medical problems related to diabetes.

“I think this is a study that’s maybe too early,” Dr. Sodhi said. “They did ‘guesstimates’ on what target blood glucose ranges to be looking at, but I think over time, we might, with more studies like this, be building a case to try to put these types of monitors in for patients who are young for the purpose of optimizing pregnancy outcomes.”

The authors have disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Patients with pregestational diabetes may benefit from use of a continuous subcutaneous insulin infusion pump paired with a continuous glucose monitor. Use of the tools has been associated with a reduction in maternal and neonatal morbidity, a recent study found.

“We were seeing an unacceptable burden of both maternal and fetal disease in our diabetic population,” said Neil Hamill, MD, a maternal-fetal medicine specialist at Methodist Women’s Hospital, Omaha, Neb., and an author of the study. “We thought the success with this technology in the nonpregnant population would and should translate into the pregnant population.”

Dr. Hamill and his colleagues analyzed data from 55 pregnant patients who received care at the Women’s Hospital Perinatal Center at the Nebraska Methodist Health System between October 2019 and October 2022. Everyone in the cohort had pregestational diabetes and required insulin prior to week 20 of pregnancy. They used CGMs for more than 2 weeks. The study set blood glucose levels of less than 140 mg/dL as a healthy benchmark.

Participants who had severe preeclampsia, who had delivered preterm, who had delivered a neonate with respiratory distress syndrome, and/or who had given birth to a larger-than-expected infant spent less time in the safe zone – having a blood glucose level below 140 mg/dL – than women who did not have those risk factors.

“When blood sugar control is better, maternal and fetal outcomes are improved,” Dr. Hamill said.

Neetu Sodhi, MD, an ob.gyn. at Providence Cedars-Sinai Tarzana Medical Center, Los Angeles, expressed optimism that use of blood glucose monitors and insulin pumps can improve outcomes for pregnant patients with pregestational diabetes.

“This is just another case for why it’s so important for patients to have access to these types of devices that really, really improve their outcomes and their health, and now it’s proven in the case of pregnancy outcomes too – or at least suggested strongly with this data,” Dr. Sodhi said.

Mark Ebell, MD, a professor of epidemiology at the University of Georgia, Athens, was more skeptical, pointing out that study participants might have used other methods in addition to the technology to lower their blood sugar levels.

The findings suggest that insulin pumps are more manageable than multiple, daily self-injections. About 1 in 9 women have diabetes in the United States, and 35% of people newly diagnosed with the condition are women of reproductive age.

Dr. Hamill said that in future research, use of a stricter criterion for baseline blood sugar levels (< 140 mg/dL) would be helpful, as would exploring how much time patients need to spend below that level for optimal outcomes.

“Those questions are really absent in the literature,” Dr. Hamill said. “Most of our obstetrical literature is comparing treatment types. All those things are secondary. It’s the blood sugar that confers the risk, and if we get the blood sugar better, risk is reduced.”

Dr. Hamill added that the benefits of these technologies for patients with gestational diabetes are unclear in consideration of the limited duration of the disease and the time required to implant or install a monitor and pump, as well as associated risks and the cost of the devices.

Dr. Sodhi said clinicians who see patients during family planning visits should review morbidities and medical problems related to diabetes.

“I think this is a study that’s maybe too early,” Dr. Sodhi said. “They did ‘guesstimates’ on what target blood glucose ranges to be looking at, but I think over time, we might, with more studies like this, be building a case to try to put these types of monitors in for patients who are young for the purpose of optimizing pregnancy outcomes.”

The authors have disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food, predominately plant-based diet.

margouillatphotos/Thinkstock

To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.

The recommended daily allowances for protein are easily met by consuming a variety of whole plant foods, including a variety of minimally processed vegetables, fruits, whole grains, legumes, nuts, and seeds. One cup of cooked red lentils or black beans, for example, contains between 15 g and 18 g of protein. A quarter cup of almonds contains about 7 g of protein and one cup of cooked oats has 5 g.
 

What about those amino acids?

An area of contention around plant food protein is “complete versus incomplete protein,” terms used to describe whether a protein contains all nine essential amino acids that our bodies require from a single source. Animal food sources usually contain all the essential amino acids, whereas plant sources of protein may contain varying amounts of these amino acids or may even be missing some.

This leads to a misconception that someone adopting a diet of predominately plant food may have to stack or combine specific plant foods in a meal to ensure their protein intake includes an appropriate proportion of amino acids. But the process of protein breakdown turnover solves this problem. The body continuously breaks down protein and recombines it with amino acids stored in tissue for use when needed. Once absorbed by the small intestine, it doesn’t matter whether the protein or amino acids came from the same meal. As long as a person is eating a variety of plant-based protein sources, they will consume adequate amounts of all essential amino acids.

This is true even for athletes, older adults and pregnant women. It is also the position of the Academy of Nutrition and Dietetics that a whole-food, predominately plant-based eating pattern is appropriate for athletes and “all stages of the life cycle, including pregnancy, lactation, infancy, childhood, adolescence, older adulthood.”
 

The plant-based diet

For examples of healthy plant-based eating plans, The American College of Lifestyle Medicine offers a complimentary guide for a whole food, predominantly plant-based diet that demonstrates how easily the recommended dietary allowance of protein is satisfied. A breakfast of rolled oats, a lunch of bean burritos, and a dinner of mashed potatoes, with chickpeas with a couple snacks throughout the day, adds up to 71 g of protein. Other plant-based meal plans top 100 g or 90 g, with all meal plans meeting or surpassing recommended allowances.

Along with the protein, plant food delivers other beneficial nutrients and dietary components like fiber, antioxidants, anti-inflammatory properties, various vitamins and nutrients, and phytochemicals and vitamin D, without the saturated fats and sodium in meat. But U.S. adults get approximately two-thirds of their protein from animal sources, which lack fiber and have higher levels of saturated fats or sodium that can raise cholesterol and increase the risks for heart disease and stroke.

For clinicians, ACLM published a 10-part series of research white papers on the benefits of a whole food, plant-predominant dietary lifestyle and offers a catalogue of food as medicine continuing medical education and continuing education courses.

Patients hunger for knowledge about health-promoting nutrition but may have difficulty sorting myths from evidence-based facts. Each healthcare professional has an important and powerful opportunity to steer patients in a healthier direction through their diet.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development; President, American College of Lifestyle Medicine, Mountain View, Calif. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food, predominately plant-based diet.

margouillatphotos/Thinkstock

To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.

The recommended daily allowances for protein are easily met by consuming a variety of whole plant foods, including a variety of minimally processed vegetables, fruits, whole grains, legumes, nuts, and seeds. One cup of cooked red lentils or black beans, for example, contains between 15 g and 18 g of protein. A quarter cup of almonds contains about 7 g of protein and one cup of cooked oats has 5 g.
 

What about those amino acids?

An area of contention around plant food protein is “complete versus incomplete protein,” terms used to describe whether a protein contains all nine essential amino acids that our bodies require from a single source. Animal food sources usually contain all the essential amino acids, whereas plant sources of protein may contain varying amounts of these amino acids or may even be missing some.

This leads to a misconception that someone adopting a diet of predominately plant food may have to stack or combine specific plant foods in a meal to ensure their protein intake includes an appropriate proportion of amino acids. But the process of protein breakdown turnover solves this problem. The body continuously breaks down protein and recombines it with amino acids stored in tissue for use when needed. Once absorbed by the small intestine, it doesn’t matter whether the protein or amino acids came from the same meal. As long as a person is eating a variety of plant-based protein sources, they will consume adequate amounts of all essential amino acids.

This is true even for athletes, older adults and pregnant women. It is also the position of the Academy of Nutrition and Dietetics that a whole-food, predominately plant-based eating pattern is appropriate for athletes and “all stages of the life cycle, including pregnancy, lactation, infancy, childhood, adolescence, older adulthood.”
 

The plant-based diet

For examples of healthy plant-based eating plans, The American College of Lifestyle Medicine offers a complimentary guide for a whole food, predominantly plant-based diet that demonstrates how easily the recommended dietary allowance of protein is satisfied. A breakfast of rolled oats, a lunch of bean burritos, and a dinner of mashed potatoes, with chickpeas with a couple snacks throughout the day, adds up to 71 g of protein. Other plant-based meal plans top 100 g or 90 g, with all meal plans meeting or surpassing recommended allowances.

Along with the protein, plant food delivers other beneficial nutrients and dietary components like fiber, antioxidants, anti-inflammatory properties, various vitamins and nutrients, and phytochemicals and vitamin D, without the saturated fats and sodium in meat. But U.S. adults get approximately two-thirds of their protein from animal sources, which lack fiber and have higher levels of saturated fats or sodium that can raise cholesterol and increase the risks for heart disease and stroke.

For clinicians, ACLM published a 10-part series of research white papers on the benefits of a whole food, plant-predominant dietary lifestyle and offers a catalogue of food as medicine continuing medical education and continuing education courses.

Patients hunger for knowledge about health-promoting nutrition but may have difficulty sorting myths from evidence-based facts. Each healthcare professional has an important and powerful opportunity to steer patients in a healthier direction through their diet.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development; President, American College of Lifestyle Medicine, Mountain View, Calif. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Science supports the use of a whole food, predominantly plant-based dietary pattern for optimal health, including reduced risk for chronic disease, and best practice in treatment of leading chronic disease.

But clinicians who prescribe such eating patterns encounter a common concern from patients whose health may benefit.

“Where will I get my protein?”

We’ve all heard it, and it’s understandable. Patients know that protein is essential for their health and strength, and animal foods have developed a reputation for being the premier protein sources that humans should prioritize through diet. But widespread misconceptions about human needs for protein have inaccurately equated animal food as the best and only sources of protein, augmented by fad diets and modern food marketing. All of this leads to confusion about how much protein people should actually consume and the quality of protein found in plant foods, making many patients reluctant to fully embrace a whole food, predominately plant-based diet.

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To ensure that patients have all the facts when making dietary decisions, clinicians need to be prepared to respond to concerns about protein adequacy and quality with evidence-based information. A good starting point for these conversations is to assess how much protein patients are already consuming. A review of the 2015-2016 National Health and Nutrition Examination Survey found that women normally consume an average of 69 g and men an average of 97 g of protein daily.

As a general point of reference, the recommended dietary allowance for protein is about 0.8 g/kg of bodyweight (or 0.36 g/lb), which equates to about 52 g of protein per day for a 145-lb woman and 65 g for a 180-lb man. But for many patients, it may be best to get a more precise recommendation based upon age, gender and physical activity level by using a handy Department of Agriculture tool for health care professionals to calculate daily protein and other nutrient needs. Patients can also use one of countless apps to track their protein and other nutrient intake. By using the tool and a tracking app, both clinician and patients can be fully informed whether protein needs are being met.

The recommended daily allowances for protein are easily met by consuming a variety of whole plant foods, including a variety of minimally processed vegetables, fruits, whole grains, legumes, nuts, and seeds. One cup of cooked red lentils or black beans, for example, contains between 15 g and 18 g of protein. A quarter cup of almonds contains about 7 g of protein and one cup of cooked oats has 5 g.
 

What about those amino acids?

An area of contention around plant food protein is “complete versus incomplete protein,” terms used to describe whether a protein contains all nine essential amino acids that our bodies require from a single source. Animal food sources usually contain all the essential amino acids, whereas plant sources of protein may contain varying amounts of these amino acids or may even be missing some.

This leads to a misconception that someone adopting a diet of predominately plant food may have to stack or combine specific plant foods in a meal to ensure their protein intake includes an appropriate proportion of amino acids. But the process of protein breakdown turnover solves this problem. The body continuously breaks down protein and recombines it with amino acids stored in tissue for use when needed. Once absorbed by the small intestine, it doesn’t matter whether the protein or amino acids came from the same meal. As long as a person is eating a variety of plant-based protein sources, they will consume adequate amounts of all essential amino acids.

This is true even for athletes, older adults and pregnant women. It is also the position of the Academy of Nutrition and Dietetics that a whole-food, predominately plant-based eating pattern is appropriate for athletes and “all stages of the life cycle, including pregnancy, lactation, infancy, childhood, adolescence, older adulthood.”
 

The plant-based diet

For examples of healthy plant-based eating plans, The American College of Lifestyle Medicine offers a complimentary guide for a whole food, predominantly plant-based diet that demonstrates how easily the recommended dietary allowance of protein is satisfied. A breakfast of rolled oats, a lunch of bean burritos, and a dinner of mashed potatoes, with chickpeas with a couple snacks throughout the day, adds up to 71 g of protein. Other plant-based meal plans top 100 g or 90 g, with all meal plans meeting or surpassing recommended allowances.

Along with the protein, plant food delivers other beneficial nutrients and dietary components like fiber, antioxidants, anti-inflammatory properties, various vitamins and nutrients, and phytochemicals and vitamin D, without the saturated fats and sodium in meat. But U.S. adults get approximately two-thirds of their protein from animal sources, which lack fiber and have higher levels of saturated fats or sodium that can raise cholesterol and increase the risks for heart disease and stroke.

For clinicians, ACLM published a 10-part series of research white papers on the benefits of a whole food, plant-predominant dietary lifestyle and offers a catalogue of food as medicine continuing medical education and continuing education courses.

Patients hunger for knowledge about health-promoting nutrition but may have difficulty sorting myths from evidence-based facts. Each healthcare professional has an important and powerful opportunity to steer patients in a healthier direction through their diet.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development; President, American College of Lifestyle Medicine, Mountain View, Calif. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.