New obesity definition ups U.S. adult rate to 70%

New obesity definition nearly doubles U.S. adult obesity rate to 70%, revealing higher health risks.

Why it matters

  • Obesity rates in the U.S. have been underestimated by relying solely on BMI.
  • The new definition includes body fat distribution, which is linked to higher health risks.
  • Nearly 70% of U.S. adults now fall under the obesity category, highlighting a significant public health issue.

By the numbers

  • Obesity prevalence increases from 42.9% to 68.6% under the new definition.
  • Study involved over 300,000 people.
  • Nearly 80% of adults over 70 are affected.

The big picture

  • The new definition includes anthropometric measures like waist circumference, which better captures body fat distribution.
  • Individuals now classified as obese but not before have higher risks of diabetes, cardiovascular disease, and mortality.
  • This could change how obesity is treated and managed.

What they're saying

  • Some commenters question if this is a real increase or just a redefinition.
  • Others highlight societal factors like sedentary lifestyles and poor food choices.
  • There's mention of "skinny-fat" individuals who have normal BMI but high body fat.

Caveats

  • The study is based on a new definition, so it's not necessarily an increase in obesity rates but a reclassification.
  • Further studies are needed to understand the causes and optimal treatments for anthropometric-only obesity.

What’s next

  • More research is needed to understand the implications of this new definition.
  • The study team plans to explore different treatment strategies for the newly defined obese population.