When it comes to feeding your baby, you want to make sure you are doing everything correctly. This includes giving them the right vitamins and minerals. One vitamin that is important for babies is Poly-Vi-Sol. This vitamin helps with the development of their bones and teeth. It is important to follow the directions on the bottle when giving your baby this vitamin. The amount of drops you give your baby will depend on their age. You will also want to make sure you are giving them this vitamin with a full feeding.