Mixed
Among US adults, non-Hispanic Black individuals exhibited a significant decrease in lean body mass from 2011 to 2018, while other racial/ethnic groups maintained stable or increased lean mass.
For non-Hispanic Black adults, population data indicates a concerning trend of declining lean mass. To counter this, prioritize resistance training and adequate protein intake, as these are the primary levers for maintaining muscle mass, regardless of broader demographic trends.
The age adjusted mean lean mass decreased in the non-Hispanic black group and increased in the non-Hispanic Asian group, but no statistically significant changes were found in other racial or ethnic groups.
Why this rating
Large, nationally representative sample (NHANES) with rigorous statistical adjustments, though observational design limits causal inference.
Source
Trends in obesity and adiposity measures by race or ethnicity among adults in the United States 2011-18: population based study
Buyun Liu et al. · BMJ · 2021
DOI 10.1136/bmj.n365
More from this paper
- Overall US adult obesity prevalence increased significantly from 2011 to 2018, with non-Hispanic Black individuals showing the highest prevalence but leveling off trends.Strong
- Non-Hispanic Asian adults in the US experienced significant increases in all measured adiposity metrics (BMI, waist circumference, body fat percentage) and lean mass between 2011 and 2018.Good
Related findings · Mixed
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- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
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