Exercise is for health, diet is for weight loss. The overlap exists but is minimal. Exercise activity hermogenesis (often known as EAT, ironically) is usually e

Exercise is for health, diet is for weight loss. The overlap exists but is minimal. Exercise activity hermogenesis (often known as EAT, ironically) is usually estimated to be around 5% of total daily energy expenditure (TDEE). I wouldn't be surprised if the obese people in question started to exercise and actually increased their food intake to match.