03-23-2010, 09:44 PM
The current recommended intake of vitamin D is 200 IUs (international units) for those up to age 50; 400 IUs for people 51-70; and 600 IUs for those older than 70. Requirements increase with age because older skin produces less vitamin D.
But these recommendations date back to 1997. "Additional studies have been published since that time documenting the effectiveness of higher levels of vitamin D," says Holick, who was a member of the Institute of Medicine (IOM) committee that issued the recommendations.
But these recommendations date back to 1997. "Additional studies have been published since that time documenting the effectiveness of higher levels of vitamin D," says Holick, who was a member of the Institute of Medicine (IOM) committee that issued the recommendations.