Ask The Expert
August 15, 2011
Not getting enough vitamin D can have a long-term effect on bone health and may be associated with other health problems.
Get a copy of the actual laboratory report. It will show what that lab considers as the normal vitamin D level. Your level may be adequate. The Institute of Medicine has defined new normal ranges for vitamin D. A level of 20 ng/mL or higher is considered adequate for bone and overall health. But some labs have not adjusted their normal ranges to reflect these new guidelines.
If your vitamin D level is below 20 ng/mL, there are a few reasons why you might be low in vitamin D ó even when taking 8000 IUs of vitamin D daily. You could be: