Tryptophan is an essential amino acid that the body doesn’t produce itself, and it is used by the body to synthesize various ...

Tryptophan is not always listed as an ingredient in dietary supplements. Instead, It may be reported as "niacin," a vitamin that tryptophan helps create. One milligram of niacin (also called the ...

Tryptophan is an essential amino acid responsible for the creation of niacin, a B vitamin that helps the body turn the food we eat into energy. It’s also a substance that’s great for promoting ...