Furthermore, this class of DRIs has died with the death of this drug.

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"Scientists agree that as the DRIs are revisited, vitamin D is one of the first recommendations that should be reconsidered, " says Patsy M.

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The current Dietary Reference Intakes (DRIs) developed by the Institute of Medicine's Food and Nutrition Board for healthy Americans is available in Table 2 here.

CNN: How much vitamin D should someone over 55 take?