My grandson, age 3, will not eat. Only french fries, potato chips, graham crackers, and a few cookies. He refuses to eat all other foods. No vegetables, no meats of any kind and no sea food. He will drink apple juice, milk and yogurt, but the yogurt must not have any fruit in it. I know he s hungry at times, because he says his tummy is growling and he cries. What can I do? Where can I get help?