Studies suggest that we take much more vitamin D than we do now —
especially those of us living in northern climes who may get too
little sunlight to produce adequate amounts in the skin. Many
scientists have advocated vitamin D doses much higher than the
present recommended dose to prevent a host of chronic conditions.
But the report of an expert panel convened by the Institute of
Medicine (IOM) concluded that high doses of vitamin D aren't
necessary and might even be harmful. Many people — including many
clinicians and researchers — were taken by surprise.
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