UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria PKU is a rare inherited disease. It affects the body's capacity to process an protein building block called phenylalanine. Typically, the liver produces an enzyme known as phenylalanine hydroxylase, which transforms phenylalanine into tyrosine. In people who have PKU, this enzyme fails to function properly. As a result, phenylalanin