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When I was born more than 30 years ago, I underwent typical newborn screening for certain harmful or potentially fatal disorders that are not otherwise apparent at birth. Much to my parent’s surprise, I was diagnosed with a mild form of Phenylketonuria (PKU) known as hyperphe. People with PKU can’t metabolize an essential amino acid called “Phe,” which is found in most foods. If these foods are consumed, Phe builds up in the blood and can be toxic to the brain. There are several ways for...Read the full article