Sulphate is used for many functions in the body, including detoxification, maintaining the lining of the gut, and hormone production.
The supporters of sulphation claim that some children with autism have a low level of sulphate and this may cause or exacerbate some of the symptoms of autism, such as impaired communication and social difficulties.
They think that these difficulties can be overcome by taking sulphate supplements, by applying magnesium sulphate directly onto the skin, or by bathing in magnesium sulphate (Epsom salts).
They also think that individuals with low sulphate should avoid foodstuffs, such as tomatoes, which contain high levels of phenol, which overtax the available sulphur resources of the body.
We have been unable to identify any scientific studies or trials of sulphate as a treatment for people on the autism spectrum.