Effect of varying energy and protein intake on nitrogen balance in adults engaged in heavy manual labour.
1. The effect of varying energy and protein intake on nitrogen balance in adult men engaged in heavy manual labour was investigated. 2. Low protein and energy levels resulted in negative N balance and urea index (Waterlow, 1963) was decreased. 3. Urinary excretion of hydroxyproline was found to be sensitive to dietary protein level, but not to energy.
D000293:Adolescent; D000328:Adult; D000596:Amino Acids / Q000097:blood; D003404:Creatinine / Q000378:metabolism; D004032:Diet; D004044:Dietary Proteins / Q000378:metabolism*; D002149:Energy Intake; D006801:Humans; D006909:Hydroxyproline / Q000652:urine; D008297:Male; D009584:Nitrogen / Q000378:metabolism*; D005082:Physical Exertion; D014508:Urea / Q000652:urine
D000596:Amino Acids; D004044:Dietary Proteins; D014508:Urea; D003404:Creatinine; D009584:Nitrogen; D006909:Hydroxyproline