Sulphate (sulfate) is a natural substance used for many functions in the body, including detoxification, maintaining the lining of the gut, and hormone production.
Some people think that some people on the autism spectrum have a low level of sulphate and this may cause or worsen 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.
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 research studies or trials of the use of sulphation for people on the autism spectrum.