The full form of Phe is Phenylalanine. It’s used on Medical ,Biochemistry in Worldwide

Phenylalanine isn’t a health concern for most people. However, for people who have the genetic disorder phenylketonuria (PKU) or certain other health conditions phenylalanine can be a serious health concern.

Phenylalanine can cause intellectual disabilities, brain damage, seizures and other problems in people with PKU. Phenylalanine occurs naturally in many protein-rich foods, such as milk, eggs and meat. Phenylalanine is also sold as a dietary supplement.

The artificial sweetener aspartame (Equal, NutraSweet), which is added to many medications, diet foods and diet sodas, contains phenylalanine.

Federal regulations require that any beverage or food that contains aspartame bear this warning: “Phenylketonurics: Contains phenylalanine.” This warning helps people with PKU avoid products that are a source of phenylalanine.