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L-Tryptophan is a large neutral amino acid essential to human metabolism because it is the metabolic precursor of serotonin (a neurotransmitter), melatonin (a neurohormone), and niacin (vitamin B3) which assist in the regulation of sleep, positive mood and immune function. L-Tryptophan is not synthesized by the body and must be obtained from the diet. As a component of dietary protein, tryptophan is particularly plentiful in chocolate, oats, bananas, dried dates, milk, cottage cheese, meat, fish, turkey, and peanuts.

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Life Choice L-Tryptophan 220mg+50mg B-6

Life Choice L-Tryptophan 220mg+50mg B-6


60 V-Capsules

$36.99 $33.15 (Save 10%)

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NOW L-Tryptophan 220 mg  60 Capsules

NOW L-Tryptophan 220 mg 60 Capsules

60 Vegetarian Capsules

$12.99 $10.99 (Save 15%)

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