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A member asked:
Hi doctors. i had two vitamin d blood tests. vitamin d, 1,25 dihydroxy was within normal range 40, range 18-72 pg/ml. however,vitamin d, 25-oh, total,ia, was low-24. range 30-100 ng/ml. what are differences between these tests. do i need vitamin d?
A doctor has provided 1 answer
Yes. 25-OH vitamin D reflects your intake and vitamin D made for sun exposure. You may take 2000 units of vitamin D3/day. Wish you good health!
Answered 9/19/2021
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