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Department of Foods and Nutrition, School of Home Economics, University of Wisconsin, Madison, Wisconsin
Nitrogen retention of 6 men fed semi-purified diets containing 5.80 g total nitrogen was affected significantly by the amount of essential amino acids ingested when the caloric intake was 45 kcal/kg of body weight. The inclusion of arginine, histidine, cystine and tyrosine appeared to have a beneficial effect on nitrogen retention when the essential amino acids contributed a major portion of the dietary nitrogen. Marked relationships exist among caloric intake, essential amino acid intake and nitrogen retention.
2 Present address: Department of Food and Nutrition, School of Home Economics, College of Agriculture and Home Economics, University of Nebraska, Lincoln.
Manuscript received 17 August 1964.