Researchers say they've found a rare form of autism that could be treatable. They say mutations could lead to a form of autism with epilepsy, which could be treated with a dietary supplement.
It comes from a gene that controls the breakdown of proteins called "branched chained amino acids."
The proteins are important to brain chemistry, but they have to come from food or nutritional supplements.
Some gene mutations break the proteins down too fast and that results in this severe form of autism.
However, this form of autism is believed to be extremely rare and not likely to account for many cases in the country.