Diet is so worth it. My dd8 is such a calm lovely girl. Her teachers have no issues with her behavior even though she has adhd. She is on ritalin but it just helps with her concentration- everything else is covered by diet. She has another child in her class who also has adhd and is on ritalin- but he has such huge come downs and displays such problematic behavior. That would have been my daughter if it wasn't for this diet. I even forgot to give her ritalin one day last week and no one even noticed. My dd also reacts to dairy so if the diet doesn't do everything you need then gluten and dairy are worth looking at too – Tania