Health
Diet, Not Activity, May Drive Obesity
Health Points
- Dietary intake appears to explain population differences in obesity more than activity levels.
- After adjusting for body size, daily calorie burn was similar across varied lifestyles.
- Making fresh, minimally processed foods affordable is a public health priority.
The international team combined observational data and modeling to compare calorie use and body composition in more than 4,000 people across six continents.
While the analysis cannot prove cause and effect, its findings sit alongside a broad research base that informs practical guidance for healthier eating.
“This is not saying that physical activity isn’t important. It absolutely is.”
Amanda McGrosky, PhD, co-author of the study.
For weight management, experts recommend prioritizing whole fruits and vegetables, whole grains, nuts, legumes and lean proteins while reducing ultra-processed foods.
Want simple, evidence-based strategies for eating well after 40? Join Fit with Age for weekly tips and easy recipe swaps to help you make lasting changes.
