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February 12, 1938

ESSENTIAL AMINO ACIDS IN NUTRITION

Author Affiliations

New York University Graduate School, Department of Biology, Washington Square.

JAMA. 1938;110(7):528. doi:10.1001/jama.1938.02790070052023

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Abstract

To the Editor:—  I am writing in reference to the editorial "Essential Amino Acids in Nutrition" (The Journal, Dec. 18, 1937, p. 2070). The editorial deals with the extensive and valuable chemical work of Prof. W. C. Rose and his collaborators on the nutritional value of amino acids as a part of the diet of young rats. Several references are being made to a cause and effect relationship between amino acids and growth; e. g., some amino acids being "essential for growth," "promoting normal growth," "in order that growth might occur," "indispensable for growth," "the fractions tested for their growth-promoting properties," "the twenty-two common amino acids now can be classified precisely according to their growth effects," "the animal body cannot synthesize this substance at a rate fast enough to permit normal growth," and so on.I believe that most physiologists will differ with you in the interpretation of these studies.

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