Prevention of Rickets and Vitamin D Deficiency: New Guidelines for Vitamin D Intake

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Abstract
Rickets in infants attributable to inadequate vitamin D intake and decreased exposure to sunlight continues to be reported in the United States. It is recommended that all infants, including those who are exclusively breastfed, have a minimum intake of 200 IU of vitamin D per day beginning during the first 2 months of life. In addition, it is recommended that an intake of 200 IU of vitamin D per day be continued throughout childhood and adolescence, because adequate sunlight exposure is not easily determined for a given individual. These new vitamin D intake guidelines for healthy infants and children are based on the recommendations of the National Academy of Sciences.