Starting child on a restricted diet, such as a gluten/casein-free diet, or removing specific foods to which their child showed signs of an allergic reaction. (People with autism are often intolerant of gluten, a protein in four types of cereal, and casein, a protein found in animals??? milk.) Gluten and gluten-like proteins are found in wheat and other grains, including oats, rye, barley, Turkish?