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Medical Term:

sparing action


Definition: the manner in which a nonessential nutritive component, by its presence in the diet, lowers the dietary requirement for an essential component; thus, nonessential l-cysteine spares essential l-methionine and nonessential l-tyrosine spares essential l-phenylalanine.

Synonym(s): sparing phenomenon

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.