Understanding Phenylketonuria (PKU)
Phenylketonuria PK is a rare inherited disorder. It affects the body's capacity to metabolize an essential nutrient called phenylalanine. Frequently, 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