My son was highly "allergic" to breads and red food colorings. He could have one slice of any grain product a day, if he had half a sandwich, he could not have any pastas. The red food coloring was fun to deal with, I threw out so much food products...instant oatmeals, cereals, tomato based products...
I had him on the Feingold Diet and found several other food products in addition to flouescent lighting and perfume that I wore.
He became attentive, focused and easier to have him do things on his own without becoming agitated.
I also took him to an Iridologist ..which some doctors do not believe in and say there is no scientific evidence that it helps at all...But...she gave my some some licorce root which cleans out the toxins (wayyyy well), chronium, and valerian root which is a natural relaxant. The valerian root smells and taste awful and he only use it for a month until he was "de toxified" and able to relax on his own.

Recommend both ways of handling ADHD, Aspbergers and any other attentive disorder.
[link to www.feingold.org]
[link to iridologynow.sandycarter.com]

My son never became addicted or took any prescriptive medication, he is able to focus fully. As an adult he is taking a GNC product that is helping him retain focus.
Sam.E and also focus fast.
I highly recommend that people go the natural way and avoid the dependency, behavior management program that most schools will strongly suggest and implement.