In the darkness: B"sd I wrote just recently Despite endless studies the "correct" recommended level of vitamin D remains quite arbitrary - usually given as 30 but as low as 15 may be fine. Some recent studies also suggest higher levels may even be harmful. In some cases I check the calcium and parathyroid hormone levels (PTH) as elevated levels usualy reflect Vit D deficiency. I welcome your indvidual consult
Answered 2/26/2016
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