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I have tested my vitamin d level and its 29 ng/mL , I have read that I should begin with 50,000 IU for 8 weeks then after that take it every month, is this good enough to level it up? And is 5,000 IU a day safe enough to take everyday for lifetime since I don't get any sun exposure.

Asked by  Shana on October 26, 2015

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