UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria phenylketonuria is a rare hereditary disorder. It impacts the body's ability to metabolize an amino acid called phenylalanine. Normally, the body makes an enzyme known as phenylalanine hydroxylase, which changes phenylalanine into tyrosine. In people who have PKU, this enzyme lacks function properly. As a result, phenylalanine incre