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My doctor, a well respected endocrinologist says that is is vital when checking Vitamin D3 levels to run both the 25-Hydroxy blood test as well as Vit d, 1,25. My 25 Hydoxy test indicates a low level of 27.5 on recent blood work but for 1,25 shows a level of 72.1 My Dr. says the 72.1 is what is actually being absorbed and is a bit high and has suggested I cut my supplementation down from 4,000 to 2,000. IU's Do you agree with her assessment? Thanks.

Asked by  wexworld on November 2, 2014

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