UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria PK is a rare inherited disease. It influences the body's ability to metabolize an protein building block called phenylalanine. Typically, the liver creates an enzyme called phenylalanine hydroxylase, which transforms phenylalanine into tyrosine. In people who have PKU, this enzyme fails to function properly. As a result, phenylalani