Find your focus! The idea of an ADHD Diet, high in protein and low in carbohydrates, has gained popularity. Problems concerned with eating are indeed common with ADHD. Just eating a balanced meal before you're "crashing" is a challenge.
Help others see WHO your child is not WHAT he has. Bring awareness to the stereotypes or judgment that is sometimes present around mental health disorders. Acceptance is key, not trying to "fix" a child.