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Kids and Vitamin D Deficiency. ââââââRosemont, IL, October 17, 2012 â A startling increase in the frequency of severe vitamin D deficiency is being reported in the U.S. and other countries. This severe deficiency can have a devastating impact on a childâs bone strength, the United States Bone and Joint Initiative (USBJI) says.
A. 16 â 18. To prevent vitamin D deficiency, the recommended intake of vitamin D is 400 IU per day for infants and children with inadequate sun exposure, and 400 to 600 IU per day for adults with inadequate sun exposure.