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Tryptophan

Definition

Tryptophan is an amino acid necessary for normal growth in infants and for nitrogen balance in adults. It is an essential amino acid, which means your body cannot produce it -- you must get it from your diet. It is found in vegetables, legumes, and grains. It is used by your body to help make niacin and serotonin, which is thought to produce healthy sleep and a stable mood.

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Review Date : 10/14/2003
Reviewed By : A.D.A.M. editorial.

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