51 iu or 51 nl/ml?: If your blood level is 51 ng/ml you have more than sufficient vitamin d and you don't need to supplement whatsoever. A recent analysis of many vitamin d studies showed that vitamin d supplementing almost never improves health unless you address why the vitamin d was low in the first place.
Answered 12/11/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
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