According to NAET theory, autism is a nutritional deficiency disorder causing biological, neurological and developmental problems in children. The nutritional deficiency is caused by poor digestion, absorption, assimilation and utilization of essential nutrients due to allergies. NAET is the only treatment known so far that is able to eliminate allergies permanently allowing the sufferer to live a normal life once again. NAET is a blend of medical knowledge and non-invasive painless, holistic treatment procedures that is able to eliminate various levels of sensitivities and allergies permanently to the treated allergens. In the past 22 years of our clinical practice, we have not seen any adverse reactions with NAET, if it is applied properly by a trained NAET practitioner.