Studies published by Autism Speaks show that a set of biochemical pathways (methylation, transsulfration and sulfation) tend to function sub-optimally for those with autism. These pathways are involved in detoxification, heavy metal elimination, digestion, immune function and gut integrity. Gastrointestinal symptoms and inflammation are very common for those on the spectrum. These include diarrhea, constipation, bloating and GI pain.
