Metabolic biomarkers of increased oxidative stress and impaired methylation capacity in children with autism The American Journal of Clinical Nutrition Autism is an Acquired Cellular Detoxification Deficiency Syndrome Unveiling Effective Supplements and Vitamins for Autism Brighter Strides ABA Tylenol can lower the body's key antioxidant, glutathione, though this isn't seen on routine labs. But mechanistic data clinical proof, so we still need good trials. The Tylenolautism link isn't clear.