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L-tryptophan converts to niacin in the body
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Life Extension, D, L-Phenylalanine Capsules, 500 mg, 100 vegetarian capsules listing_flag L-tryptophan converts to niacin inDescription Phenylalanine supplementation helps in the production of healthy neurotransmitters (dopamine, norepinephrine and epinephrine). Clinical trials suggest it may promote positive moods. Phenylalanine is an essential amino acid, which means your body can't produce sufficient amounts and requires it from an external source. It's converted to L tyrosine in the liver, which is then converted into dopamine, norepinephrine and epinephrine
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