Understanding Phenylketonuria (PKU)
Phenylketonuria PKU is a rare inherited disease. It affects the organism's capacity to process an amino acid called phenylalanine. Normally, the organs produces an enzyme called phenylalanine hydroxylase, which changes phenylalanine into tyrosine. In people who have PKU, this enzyme lacks function properly. As a result, phenylalanine increases in t