My son Blake had to quit eating gluten for health reasons and I decided to jump in with the project just to see what would happen. That was almost 2 years ago. After close evaluation, I'm never going back to wheat. My focus is better, the excess pudge melted away and I can eat chocolate every day without gaining weight. That's all well and good for me, but Blake went from a ADHD-type with C's & D's to a straight-A kid in the same 2-year time span. Every now and then he breaks down (as one could expect--he's only 12), and when he eats gluten, he can barely carry a sentence from start to finish. Fortunately this has come to his attention as well as mine, which makes choosing Mexican (corn-based) over Italian (wheat-based) so much easier!
I cried almost every parent/teacher conference from 1st-5th grade because my kid was the disrupter...in 6th grade I cried because the teachers said he was so good. Any parent who has dreaded the parent/teacher conference can relate. If this is your kids, give gluten-free a try. It's not hard once you get going and good news--chocolate is gluten-free!