UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria PKU is a rare inherited disorder. It affects the body's power to break down an essential nutrient called phenylalanine. Typically, the body makes 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 t