If my 2 yr old gets pediasure twice a day is it too much for him to also get a flinstone multivitamin? is that too much of any particular vitamin?

Pediasure: Pediasure is a nutritional supplement designed for use in children during periods of illness, poor appetite or inadequate weight gain. It is a high calorie, vitamin supplemented product which can cause weight gain. Unless otherwise advised, twice daily would be considered excessive. Although the body will eliminate excess water soluble vitamins, it will store fat soluble ones.