Vitamin D2 or D3: Which Is D Best?
By Tori Hudson, ND | Contributing Writer
- Vol. 9, No. 2. , 2008
A wealth of studies in recent years have underscored the health threats posed by vitamin D deficiency. But considerable debate has raged over which form of the vitamin is the best for supplementation. Many clinicians believe that vitamin D3, derived from fish and other animal sources, is more potent than D2, the “vegetarian” form. But new data suggest that may not be true.
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