Although studies have been conducted to investigate the effects of gluten and casein on people with autism, conclusions cannot be drawn from the study because results were not found to be significant[1].

  1. ^ Elder, Jennifer Harrison; Shankar, Meena; Shuster, Jonathan; Theriaque, Douglas; Burns, Sylvia; Sherrill, Lindsay (23 March 2006). "The Gluten-Free, Casein-Free Diet In Autism: Results of A Preliminary Double Blind Clinical Trial". Journal of Autism and Developmental Disorders. 36 (3): 413–420. doi:10.1007/s10803-006-0079-0.