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American Journal of Clinical Nutrition, Vol 23, 703-706, Copyright © 1970 by The American Society for Clinical Nutrition, Inc.

Comparative Sensitivity of Specific Amino Acid Ratios versus "Essential to Nonessential" Amino Acid Ratio

GUILLERMO ARROYAVE PH.D.1

1 From the Institute of Nutrition of Central America and Panama (INCAP), Guatemala, Central America

The sensitivity of the ratios of glycine to serum valine, cystine, and tyrosine, respectively, have been studied relatively with a ratio of groups of serum amino acids constituted by valine + leucine + isoleucine in the numerator and glycine + serine + alanine in the denominator. The ratios were measured in comparable groups of subjects differing in dietary characteristics and nutritional background. The ratio of valine to glycine has a higher distinguishing (discriminating) power for moderate protein-calorie malnutrition as indicated by the statistical analysis of the data.




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