Can phenylketonuria be prevented or avoided? Because PKU is a genetic condition, it can't be prevented or avoided. Genetic testing is the only way to determine if people carry the defective gene. Some people may carry the gene but not have PKU.

How can PKU be prevented?

PKU is a genetic condition, so it can't be prevented. However, an enzyme assay can be done for people who plan on having children. An enzyme assay is a blood test that can determine whether someone carries the defective gene that causes PKU. The test may also be done during pregnancy to screen unborn babies for PKU.

Can PKU be controlled?

There is no cure for PKU, but treatment can prevent intellectual disabilities and other health problems. A person with PKU should receive treatment at a medical center that specializes in the disorder.