Vitamin D at a level (400 IU) recommended by Health Experts*1,2 Breast feeding is best for babies, but breast milk typically contains low levels of vitamin D. Vitamin D helps development and maintenance of bones and teeth.With a daily dose of Enfamil D-Vi-Sol, you can help make sure your baby gets the recommended amount of vitamin D. Health experts agree that infants and young children who are breastfed or are receiving breast milk should receive a daily vitamin D supplement of 400 IU from 0-12 months.1 First Nations, Inuit and Metis Health Committee and The Canadian Pediatric Society. Vitamin D Supplementation: Recommendations for Canadian Mothers and Infants. Pediat Child Health 2007 (reaffirmed Oct 2010); 12(7): 583-9.2 Institute of Medicine. Dietary Reference Intakes for calcium and vitamin D. November 2010.