Few research studies are encouraging parents to go in for a GFCF (Gluten Free, Casein Free) diet for their autistic children.
This includes avoidance of gluten rich foods (foods containing wheat, rye and barley) and casein rich foods (milk and dairy products). This theory believes that gluten and casein-rich foods get partially digested to liberate peptides. Peptides enter the bloodstream. The molecular structure of these peptides is similar to that of opoids. Due to this, peptides get attracted to the opoid receptors in the brain, and cause problems in communication, behaviour and social interactions. Studies believe that avoiding foods high in gluten and casein can aid in faster recovery and better quality of life of autistic individuals.