Re: Vitamin D, come meet my colon! And Supplement Skeptics.... well....you too!

January 25, 2010

Yes, I think testing to get a baseline is key; and I should do that.

Will, your are SO right regarding the 'expert' studies. I have worked in

science and research enough to be thoroughly disheartened about how studies are

designed and how they are documented. Lots of creative writing going on there.

And peer review often turns out to be 'friend' review. (You scratch my back and

I'll scratch yours.) I think the 800 IU/day quantity was possibly set to ensure

approval and therefore funding. This was an NIH study and the NIH guidelines

for adequate D3 intake is 400 IU. So my guess is they doubled what NIH

recommends for convenience to be conservative.

>

> My only comment is that the dosing of Vit D3 (800 IU/day) seems low in

comparison to some of the other literature out there. I know people who are

taking 3000-4000 IU/day. At what point are toxicity levels reached?

>

> Have your levels tested. You will probably be shocked at how low they are.

>

> I was taking about 3-4000ius/day while nursing in the winter and was still

low. My then 3 yo tested barely in the normal range and I was gving her about

2000ius/day (in CLO).

>

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