I was told, and still find that milk and eggs can effect my ADHD/Tourette syndrome. Exercise and sleep are the key to keeping my ticks down. Remember not to get angry at your child and say something mean because of
his disability. I still have things that stand out in my memory that where said out of anger towards me, and this is from even before I went to school. When your child hits puberty and becomes old enough to start
taking on some responsiblity send him to a counciling service and make sure he can pass a Taylor/Johnson test. I am not sure what percentage of ADHD kids end up in at the wrong end of the law, but it is quite high with children
that have grown up with Tourette syndrome. Hope this helps.