Yes, studies were done on kids in juvie hall somewhere many years ago. They put some kids on a clean, healthy diet, and left the others on the crap diet, and the ones on the clean diet transformed. They stopped having violent outbursts and their mental status completely changed. This supports the findings of Weston A. Price, when he traveled around the world to places that still continued with their traditional diets. In almost all places, he found very little crime at all. Conclusion: diet matters!!!