I do not recommend any vitamins to any bf kid (or formula fed for that matter). In special circumstances one may need: Additional iron ie premie Additional vit D ie up north where little sun AAP recommends fluoride supplements if low fluoride in area water Older kids dont need vit just make sure they eat a variety of foods. Vitamins will not replace deficiencies from a bad diet!! it just gives you expensive pee!!!!!! MAryelle