Enfamil D-Vi-Sol Vitamin D Drops, a dietary supplement for infants aged 0 to 12 months. This product is a liquid vitamin D supplement designed for breastfed infants. Key features and details include: Purpose: It provides vitamin D to help a baby's body absorb calcium, which supports the development of strong bones and teeth. Dosage: One serving contains 400 IU of vitamin D, which is the daily amount recommended by the American Academy of Pediatrics (AAP) for breastfed infants. Volume: The bottle contains 1 fl oz (50 mL).