Verywell Health on MSN
We Asked a Doctor When You Should Really Take a Vitamin D Supplement
Vitamin D supplements seem to be all the rage for health and longevity these days. How do we know if we really need them? We ...
Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is the ...
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