nutrients supplement

Of course every parent want to have their kid fully nourished by eating the right type of foods and proper nutrition. Unfortunately for some, they can't get they children eat, some refuse to eat everything but milk. That is why I think, there are now supplements that are made for the future champions. Supplements in order to cover up the lack of nutrients their little body needs. I wonder if they can have this protein powder too, or they are just too young for it? care to share your two cents?