Who was this mental health professional? Like the kids name is in the article, but not the anonymous "mental health professional". Having worked helping get kids off or Ritalin, I can say that about 80% of the time, a good breakfast with protein like eggs instead of coco puffs and peanut butter and celery as a snack instead instead of double fudge elfin cookies helps a lot to smooth out behavior. also setting expectations to the child for proper behavior and modeling that behavior really helps a lot. ( In other words don't raise your voice, get down to their level to talk about issues, and never use threats as a control mechanism).
Excellent advice, thank you for a level headed post.