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L-tryptophan is an essential amino acid made from proteins during digestion by the action of proteolytic enzymes. Tryptophan can only be obtained through food or supplementation and cannot be produced within the body.

Tryptophan is a precursor and a vital element for neurotransmitters serotonin and melatonin. These chemical messengers transport nerve impulses from one cell to another. The brain will not function properly without sufficient amounts of these neurotransmitters.

Tryptophan is needed to produce serotonin in the human body. Serotonin is one of the key brain chemicals involved in regulating mood. Serotonin levels play a key role in the regulation of anxiety, depression, appetite, sexual behavior and aggression.

This amino acid is present in high levels in turkey meat and has long been said to be the reason people get sleepy after a big turkey dinner. Actually, tryptophan is also present in high levels in other meats too.

*NOTE: These statements have not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure or prevent any disease.