Phenylalanine is not harmful to healthy people, and it is also one of the essential amino acids needed by a healthy body. For children suffering from phenylketonuria, a series of symptoms of phenylketonuria can occur because they cannot metabolize the ingested phenylalanine properly.
Phenylalanine is an essential amino acid, a nutrient that is necessary for human health. Eating food containing phenylalanine in healthy people is good for the health of the organism and is not harmful.
However, for children with phenylketonuria, due to reduced or deficient activity of the enzyme phenylalanine hydroxylase, it is unable to convert phenylalanine into tyrosine, and is instead converted to phenylpyruvic acid and other metabolites through secondary metabolic pathways, which in turn leads to symptoms such as backward mental development, abnormal behavior and personality, light hair pigmentation, and a ratty urine odor in the urine and sweat of the affected child.
If you are diagnosed with phenylketonuria, please follow the doctor’s instructions for treatment.