If your child has autism, ADHD, or a learning disorder and you've already removed dairy and folic acid but still aren't seeing progress don't give up. It usually means something else Efficacy of Antioxidant Based Pharmacological Therapies in Autism Spectrum Disorder: A Systematic Review Journal of Autism and Developmental Disorders Springer Nature Link Glutathione IV Therapy: What You Need to Know COEM Researchers are studying a possible link between acetaminophen (Tylenol) use during pregnancy and higher autism or ADHD risk. It may lower glutathione, an important antioxidant for brain development.