Given the health risks associated with vitamin D deficiency, the American Academy of Family Physicians (AAFP) supports coverage of vitamin D supplementation by third party payers. Vitamin D deficiency, including cases of rickets, continues to be diagnosed in infants in the United States. Human breast milk is a poor source of vitamin D (< 50 IU/quart). Therefore, the AAFP recommends that breastfed infants whether exclusive or partial) receive 400 IU of vitamin D supplementation daily starting soon after birth until one year of age. Formula-taking infants should receive vitamin D supplementation until they are taking in more than 32 ounces of formula per day. (Dec. 2019 BOD) (2020 COD)