Diet and vitamin therapy may help people who have metabolic problems and autism symptoms.

Metabolism is the way your body breaks down foods to make energy. Some people with autism have metabolic problems or disorders. They may lack certain proteins or enzymes that are important parts of the metabolism machinery. This article discussed some examples of metabolic syndromes such as phenylketonuria, histidinemia, and adenylosuccinate lyase deficiency. Diet therapy can be very helpful for people with metabolic syndromes, and a specific diet may be tailored to the specific metabolic problem. Vitamin therapy, including pyroxidine (vitamin B6) therapy, may also be helpful for some metabolic disorders.