The range listed on my recent labs (Quest Diagnostics) is 30-100 ng/mL. I tested out of range, at 110, (Vitamin D 25, D3).
So here I am over the 100 mark. My endocrinologist had me begin a daily therapeutic dose of 5,000 IU back in 2010, when I seemed to be catching every little cold, norovirus and URI. Sure enough, labs came back reporting my levels to be out of range low.
I am happy to report that I have not been ill with anything since early 2010, when I began the 5,000 IU. Since this is a fat soluble vitamin and can be potentially toxic at high doses, it is wise to consult with your physician before attempting such a daily dose. I am monitored carefully.
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