A Duke study finds poor diet, not inactivity, is the primary cause of obesity. Despite similar activity levels, people in industrialized societies burn more calories due to body size but consume highly processed foods that disrupt hunger cues. “Eat less, move more” oversimplifies the issue. Real solutions require food policy reform, regulation, and cultural change—not just personal willpower against addictive, ultra-processed diets.
The obesity paradox: Why Americans are fitter – and fatter – than ever
