The exchange of matter and energy in lean and overweight men and women: a calorimetric study of overeating, balanced intake and undereating.
In this study of overeating and undereating, the terms in energy exchange were measured by 24-h direct and indirect calorimetry, bomb calorimetry of food and feces, and changes in body weight and composition; on average, the terms balanced to within 200 to 300 kcal/day. All subjects, whether habitually lean or overweight, gained weight similarly during overeating and lost similarly during undereating. Nor was there any difference in the adaptive thermogenesis of overweight and lean men and women.
D000328:Adult; D001833:Body Temperature Regulation; D001834:Body Water / Q000032:analysis; D002151:Calorimetry; D004032:Diet; D004063:Digestion; D002149:Energy Intake; D004734:Energy Metabolism; D005243:Feces / Q000032:analysis; D005260:Female; D005504:Food Analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000378:metabolism*