HealthyPIG Magazine

Phenylalanine is an essential amino acid. This means that the body cannot synthesize its own phenylalanine, so people must obtain it from their diet. Generally speaking, foods high in protein are also high in phenylalanine.

Phenylalanine is involved in the production of the neurotransmitters norepinephrine and dopamine, which are essential for the proper functioning of the brain and nervous system. Phenylalanine also contributes to the production of melanin, which provides color to skin, hair, and eyes.

Most people can consume phenylalanine without any risk of side effects. However, some people have the rare metabolic disease PKU, which causes the body to be unable to break down phenylalanine. This can lead to harmful levels of amphetamine in the body. Therefore, patients with PKU must carefully control their intake of amphetamine.