57d50aa9_Health_Information_Library__Why
[Used for] 3 Stars Autism 30 mg daily per 2.2 lbs (1 kg) of body weight; doctor's supervision recommended [Why] 
Research shows that vitamin B6 can be helpful for autistic children. Uncontrolled and double-blind research shows that vitamin B6 can be helpful for autistic children.15 , 16 , 17 In these trials, children typically took between 3.5 mg and almost 100 mg of B6 for every 2.2 pounds of body weight, with some researchers recommending 30 mg per 2.2 pounds of body weight. Although toxicity was not reported, such amounts are widely considered to have potential toxicity that can damage the nervous system; these amounts should only be administered by a doctor. One prominent researcher has suggested that vitamin B6 is better supported by research than is drug treatment in dealing with autism.18
Health Information Library