Speak to a nutritionist or doctor before making any major changes in your diet. When you decide to cut glutton and casein from your diet, do not attempt to do this all at once. Cutting anything from your diet suddenly is unhealthy, and your body could go into withdrawal. Instead, slowly begin reducing the amounts of breads, grains, and milk products until you are eating none. You doctor can provide you with a complete list of all the foods containing glutton and casein if you truly want to cut them all from your diet. However, it may be necessary to get the nutrients that you find in glutton and casein products in another way, such as with dietary supplements. Again, your doctor can help in this decision. Overall, maintaining a balanced diet is the healthiest thing to do. Leaving glutton and casein products out of your or your child's diet may help control autistic behavior, so it is an option that should be considered, but eating a healthy diet altogether is the best way to keep you and your family healthy.