UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria PKU is a rare genetic disorder. It affects the organism's power to process an protein building block called phenylalanine. Typically, the liver produces an enzyme called phenylalanine hydroxylase, which transforms phenylalanine into tyrosine. In people who have PKU, this enzyme fails to function properly. As a result, phenylalanine