At that point, it's not just what were the children eating, it's what were the mothers eating while pregnant? It always disheartens me to see children, especially young children, on medications. Considering the brain continues to develop into adulthood, and the brains of 5 and 6 year olds are barely developed, medications severly alter the course of development. Essentially, if you give prescriptions to a 5 or 6 year old for any length of time beyond a few days, the likelihood they'll have to be treated for such things well into their adult life increases dramatically.
CW for food, and CW for emotions/psychology need to change dramatically to see any improvement. Popping pills does not make the problem go away. It stunts your growth.