UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria PKU is a rare hereditary disease. It affects the body's capacity to process an amino acid called phenylalanine. Normally, the body produces an enzyme known as phenylalanine hydroxylase, which changes phenylalanine into tyrosine. In people who have PKU, this enzyme is function properly. As a result, phenylalanine builds up in the blo