I know nothing about food coloring but read about it some years ago. We only used coloring for Easter eggs and didn't eat the shells. Over the years some of my family had low blood sugar issues so we cut down on sugar quite a bit and avoided much sweets. We always attributed the low blood sugar to stress issues, but perhaps there is a genetic issue as well. My late sister's children and grandchildren had ADHD and OCD problems which were definitely diagnosed as genetic in their father's family. Some of them are not stable adults and most are confirmed alcoholics and do not take meds, which is unfortunate for them. One relative burned down the bedroom at age five, and was later diagnosed with oppositional defiant disorders. He had six specialists on his IEP contract at school and was eventually expelled. I don't know what happened after that. We don't have contact. I have friends whose children excelled in school on certain meds and did well in college. Their work ethic did not develop as well, however. I don't know the reasons behind that. Dorisena