The Gluten-Free, Casein-Free Diet
The gluten-free, casein-free (GFCF) diet is perhaps the most widely used biomedical treatment for autism. It involves the elimination of foods containing gluten (e.g., breads, pastas, or cereal) and casein (e.g., milk or milk products) from the individual’s diet. Between 15 and 27% of parents of children with autism report using the GFCF diet with their children (Green et al., 2006; Witwer & Lecavalier, 2005). Parents using the diet have also reported that it has been especially helpful in improving gastrointestinal symptoms and concentration/attention (Winburn et al., 2014).