Now L-Tryptophan 500 mg

L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet.L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.Every lot of NOW^® L-Tryptophan is tested to be free of Peak E and microbial contamination.Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.Produced in a GMP facility that processes other ingredients containing these allergens.For adults only.Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have in a medical condition.May cause drowsiness.Do not use with alcoholic beverages or while operating heavy machinery.Keep out of reach of children.