In this study, first grade children were randomly given either adult sized plates or smaller kiddie plates. (DiSantis KI, Birch LL, Davey A, Serrano EL, Zhang J, Bruton Y, Fisher JO: Plate Size and Children’s Appetite: Effects of Larger Dishware on Self-Served Portions and Intake. Pediatrics 2013, 131(5):e1451-e1458). The kids took more food when given the bigger plates, and ate most of the extra food that they took. The answer to the obesity epidemic!