Dale 15 months and weighs 65 pounds -- bill of health at last checkup. Last few days he doesnt want to eat everything in his bowl. Ive been giving him 2 cups in the a.m. and 2 cups at dinner. He hasnt finished a meal the last couple days or so. Should he still be getting that much? When can I switch him to a once a day meal and how much at that one time do I give him?