Overview Trial of Methyl B12 on Behavioral and Metabolic Measures in Children With Autism Status: Completed Trial end date: 2013-11-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether the supplement Methyl B12 is effective in treating some of the symptoms of Autism. Phase: Phase 2/Phase 3 Details Lead Sponsor: University of California, San FranciscoCollaborators: Arkansas Children's Hospital Research InstituteUniversity of California, DavisTreatments: Vitamin B 12