UNDERSTANDING PHENYLKETONURIA (PKU)

Phenylketonuria phenylketonuria is a rare hereditary disease. It impacts the body's ability to break down an protein building block called phenylalanine. Typically, the organs makes an enzyme called phenylalanine hydroxylase, which converts phenylalanine into tyrosine. In people who have PKU, this enzyme fails to function properly. As a result, phe