Energy--requirements, intake and balance.
D000368:Aged; D001823:Body Composition; D001824:Body Constitution; D002151:Calorimetry; D004032:Diet; D004044:Dietary Proteins; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena; D005082:Physical Exertion
D004044:Dietary Proteins