By Joannie Dobbs and Alan Titchenal
POSTED: 01:30 a.m. HST, Jun 15, 2009
Vitamin D is one of the hottest "vitamins of this decade." Tremendous growth in research on vitamin D has led to increased understanding of vitamin D's importance to health. Research is finding that many health problems are linked to low levels of this nutrient which functions more like a hormone than a vitamin. Click here for more...
Note from Andrea: I take 5000IU's daily, and be sure you are taking Vitamin D3 as it has a better rate of absorption.
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I agree!
ReplyDeleteVitamin D insufficiency is defined as a 25OHD concentration of 20 to 30 ng/mL (50 to 75 nmol/L)(ng/mL times 2.5 gives nmol/L),
ReplyDeleteMad dogs and ....
"How can vitamin-D deficiency exist despite lengthy sun exposure? This apparent paradox was raised in my last post. The medical community now recommends bloodstream vitamin D levels of at least 75-150 nmol/L, yet these levels are not reached by many tanned, outdoorsy people.[...]
Only mega-doses can overcome what seems to be a homeostatic mechanism that keeps bloodstream vitamin D within a certain range. Indeed, this range falls below the one that is now recommended. Curious isn't it? Why would natural selection design us the wrong way? [...]
In a wide range of traditional societies, people avoided the sun as much as possible, especially during the hours of peak UV (Frost, 2005, pp. 60-62). Midday was a time for staying in the shade, having the main meal, and taking a nap. Nor is there reason to believe that sun avoidance and clothing were absent among early modern humans. Upper Paleolithic sites have yielded plenty of eyed needles, awls, and other tools for making tight-fitting, tailored clothes."