Toddlers tend to be picky; however, their diet should include a variety of foods. They should drink 16-24 ounces of milk a day and no juice, as it contains empty calories. If you child drinks a lot of fluids, he might be filling up on them and feel no hunger. If that's the case, cut down his milk intake, eliminate juice, and offer only nutritious foods. If that does not help, talk with your child's regular health care provider.