My experience is that medication or no medication is an individual decision based on the circumstances, and that varies as well. I am not pro or con on the subject, but the effects of too much sugar in the diet affects some children as well. I have seen that happen. My granddaughter begged to go off the meds because of headaches for the summer and then refused to take them again when school started. She had a school reading tutor whom she responded to and got along well in some subjects but not in math. In high school she was reevaluated by a psychiatrist and he recommended no meds. She went to an easy college and learned to work around her "learning disability" whatever that means and then transferred to a big state college where she thrived because she wanted to be there, graduated and is thriving in her chosen career job. She is a 'work horse" and I think her hard work ethic does more good than anything.
She is a people person and we are very happy for her. She will always be a person who doesn't stay on one thought for very long. The psychiatrist guessed that she could learn to work around the problem and that it could be genetic in nature. Perhaps he was right. Another friend was a good worker and his ADHD seemed to go away in young adulthood. We will see. I know one friend who thinks he has outgrown his ADHD but he has been an unstable employee. People seek definite answers for indefinite problems. We just keep working on it. Dorisena