There is quite a lot of support in favour of gluten free for autism, add, schitzophrenia and bipolar. Worth a good try I think for sure. Nothing to loose with that.

I have had a lot of success with this and bipolar. Maybe it is something you could try as a family, which makes it more inclusive rather than exclusive. If you have any questions about gf you can always ask me. It can seem overwhelming at first.

Therapy sounds like a good option, and as suggested by MM something like karate or even yoga, kids can really benefit from. There is a 9 year old boy in my yoga class, he is really doing well with it. Activities like karate or yoga, something that helps us learn how to discipline the mind and as well as calm it could really help him I think.