L-Phenylalanine Phenylalanine has several functions and health benefits. L-Phenylalanine is an essential amino acid that is used to manufacture various hormones including adrenaline and noradrenaline. It is a precursor to the amino acid, tyrosine and is important for the production of chemical messengers in the brain called neurotransmitters. Phenylalanine is found naturally in the breast milk of mammals. L-phenylalanine can biologically be converted into L-tyrosine, another one of the DNA-encoded amino acids. L-tyrosine, in turn, is converted into L-DOPA, which is further converted into dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline). The latter three are known as the catecholamines. Phenylalanine uses the same active transport channel as tryptophan to cross the blood-brain barrier.
As a food supplement for adults, one (1) Vegetable Capsule of Solgar L-Phenylalanine daily with juice or water in between meals, or as directed by a healthcare practitioner Each Vegetable Capsule provides: L-Phenylalanine 500 mg Encapsulated with these natural ingredients: dibasic calcium phosphate, magnesium stearate. Vegetable capsule shell: hydroxypropylmethyl cellulose. CAUTION: PHENYLKETONURICS (PKU) - This product contains Phenylalanine
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