Dr. Natasha Campbell-McBride, who founded the Gut and Psychology Syndrome Diet (GAPS), believes that diet plays a role in autism, and that GAPS can help. GAPS is based on the Specific Carbohydrate Diet (SDC) with a few modifications. GAPS suggests that people with autism avoid processed foods, including dairy and grains. The three nutritional parts of GAPS are: 1) Diet; 2) Supplements; and 3) Detoxification and Lifestyle Changes. While there is no evidence-based research on GAPS, many parents of children with autism believe it has helped their kids.