Dropper bottle for easy dosing A Drop of SunshineVitamin D is an important nutrient for infant health, especially bone and immune system development, and may help support normal sleep rhythms. Nordic Naturals Baby's Vitamin D3 provides the recommended dose of 400 I.U. in just one drop. With a convenient applicator, Baby's Vitamin D3 is made with certified-organic extra virgin olive oil, and contains no coloring or flavoring, in order to ensure that your baby gets only the purest, highest-quality vitamin D. The American Academy of Pediatrics recommends that breast-fed or partially breast-fed infants receive 400 I.U. of supplemental vitamin D daily. While breast milk is the best source of nutrients for your baby, it likely won't provide sufficient vitamin D. Supplementation is the best way to avoid deficiency in infants and children. Nordic Naturals Baby's Vitamin D3 is the Official Baby's Vitamin D of the American Pregnancy Association.