Baby's Vitamin D3 is an excellent way to make sure infants are getting enough daily vitamin D3 to absorb calcium and build strong bones.* The American Academy of Pediatrics recommends that all babies receive 400 IU of vitamin D3 daily—easily met with just one drop of Baby's Vitamin D3. The official baby's vitamin D3 of the American Pregnancy Association, our Baby's Vitamin D3 comes in a carrier oil of certified-organic extra-virgin olive oil.