L-TryptophanL-Tryptophan is an essential amino acid important for the synthesis of melatonin and serotonin which are hormones that regulate mood and stress response. L-Tryptophan helps support relaxation, sleep, positive mood and immune function. L-Tryptophan is the precursor to Serotonin, a neurotransmitter in the brain, which is deficient in people who have depression. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, L-tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet.
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