Tryptophan is an essential amino acid that serves several important purposes, like nitrogen balance in adults and growth in infants. There are two types of tryptophan: L-tryptophan and D-tryptophan. The only difference between the two types is the orientation of the molecule. You can get tryptophan through certain foods like peanuts, pumpkine and sesame seeds, chocolate and soy.
L-tryptophane is an essential amino acid, used as an important building block for serotonine, a body own anxiety inhibitor.
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