Phenylalanine

Phenylalanine is one of the nine essential amino acids and the precursor of the amino acid Tyrosine.

Phenylalanine occurs naturally in many protein-rich foods such as milk, eggs and meat. It plays an important role in the biosynthesis of other amino acids and is converted to Tyrosine in the body to then be used in the biosynthesis of dopamine and norepinephrine neurotransmitters.

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