M.B.
He's probably substituting the milk right now for the food for nutrition. My son is 4 and still doesn't eat much. He lovvvvvvvvvvvvvvvvvves juice though. Only one kind. Extremely picky eater. It is difficult as a mom to go through this, but the pediatrician says he will grow out of it. Keep trying different things from time to time as you can.