Amino Acid Requirements of Young Women Based on Nitrogen Balance Data I. The Sulfur-Containing Amino Acids

Abstract

The amounts of the sulfur-containing amino acids required to maintain nitrogen equilibrium in 8 healthy young women have been determined. When these subjects were placed on a diet containing 7 to 8 gm of nitrogen in the form of peanut protein, the essential L-amino acids, and glycine, it was found that the cystine-methionine requirement was 350 mg or less for 5 subjects, 450 mg for two subjects and 550 mg for one subject.