Vitamin B-6 may be helpful in treating the symptoms of Autism. - GreenMedInfo Summary
The effect of high doses of vitamin B6 on autistic children: a double-blind crossover study.
Am J Psychiatry. 1978 Apr;135(4):472-5. PMID: 345827
The authors used data from an earlier nonblind study to identify 16 autistic-type child outpatients who had apparently improved when given vitamin B6 (pyridoxine). In a double-blind study each child's B6 supplement was replaced during two separate experimental trial periods with either a B6 supplement or a matched placebo. Behavior was rated as deteriorating significantly during the B6 withdrawal.