I had my Vitamin D levels checked for the first time last February (2009). Although my doctor didn't think I would be outside of the normal range, he believes in empowering patients to take control of their health and requested the lab work at my urging. According to his nurse, he prefers to see his patients around 45. Mine was 8.2 and he prescribed one weekly dose of 50,000 IUs of Vitamin D. After 2 months I was retested and I was up to almost 60 and advised to take 1,000 daily IUs to maintain. However, I believe my levels may be low again as I am beginning to feel the way I did prior to beginning my once-a-week regimen.
But tomorrow I'm off to the internist again for another annual and more lab work.