Phenylalanine

Phenylalanine is an essential amino acid crucial for protein synthesis and various biochemical processes in the body. It exists in three forms: L-phenylalanine, D-phenylalanine, and DL-phenylalanine. L-phenylalanine is naturally found in protein-rich foods like meat, fish, dairy, and certain plant-based sources. D-phenylalanine is a synthetic mirror image, while DL-phenylalanine combines both forms. Phenylalanine is a precursor to tyrosine, another amino acid important for the synthesis of neurotransmitters such as dopamine and norepinephrine. Given its role in neurotransmitter production, phenylalanine supplements are sometimes used to support mood and cognitive function. However, supplementation should be approached cautiously, and individuals with phenylketonuria (PKU), a genetic disorder impacting phenylalanine metabolism, should avoid it. As with any supplement, consultation with a healthcare professional is advised to determine appropriate dosages and ensure compatibility with individual health conditions.