GFCF diet for autism has been shown to work as well as using HBOT for autism or autism spectrum disorders. Both of these therapies improve outcomes. A change in dietary regimen has been shown to reduce symptoms of Autism and Autism Spectrum behaviors. Many autistic children are allergic to gluten and to the protein in milk, casein, and both should be eliminated from their diet. This is called a GFCF diet, meaning gluten-free and casein-free.Hyperbaric oxygen therapy (HBOT) has been shown to help with the digestive complaints and oxidative stress in autistic children. HBOT can be used with home units, either rented or purchased. These home HBOT chambers are the same type used in the studies, and have been shown to produce the same good effects using 21 percent oxygen (the same as earth’s air), as the 100 percent oxygen used in hyperbaric oxygen chambers available in hospitals and other commercial settings. Other tools are available to help children such as weighted vests and seating wedges. A group called National Autism Resources has a variety of tools and information for parents.