I just finished reading a fantastic article on vitamin D. Surprise surprise, it’s out of Canada. The Canadians have been doing such an awesome job of giving this subject excellent exposure. The article is called The vitamin D miracle: Is it for real? It’s 4 pages long so don’t miss the links to click to the next page at the bottom of each page. I particularly liked reading the last page where there’s discussion of some of the theories behind how exactly vitamin D might be playing a roll in preventing cancer at the cellular level.

In other vitamin D news, there was an interesting study headed up by Michael Holick, comparing the effectiveness of D2 and D3. This particular study concludes that they both work equally well at maintaining serum 25-hydroxyvitamin D levels. There have been a couple of other studies that show D2 to be less effective. You can see the details here: Vitamin D2 Is as Effective as Vitamin D3 in Maintaining Circulating Concentrations of 25-Hydroxyvitamin D. We’ll be sticking with the D3 at our clinic, since it’s the natural (bioidentical) variety of the supplement, and we have seen the D2 not maintain the levels as well as the D3.