Great post flats, I sat through a 3 hour lecture on vitamin D and was astounded when they showed stats that 75% yes that is correct, 75% of the US population is truely deficient in vitamin D. I had never drawn a vitamin D before at that point (2 years ago). I started checking everyone of my patients and that number is almost right on the money.
Diet and sunlight won't do it for most people when you are this low. I start people on 5000 IU daily and it can take 6 - 12 months to get up to the desired range of 60 - 80 (nl range 30 - 100). Low vitamin D levels put you at an increased risk of colon cancer among others so it is not a
supplement you want to be deficient in. There was some pretty compelling research that suggested increased risk for skin cancer as well, I think that corelation will be proved eventually. Great thing is, it is a dirt cheap
supplement and an easy fix. You can take to much though so monitor levels if you are taking high doses. 2000 IU daily is very safe but may not get you to the optimal level.
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Originally Posted by flatscat
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