Last month, I was catching up on the doctors' visits and routine blood work. While at the neurologist's office, I picked up an order for the appropriate laboratory tests which would satisfy the needs of all three of my doctors (neurologist, rheumatologist, internist), including a test to measure vitamin D levels.
One blood draw + One laboratory report
= Three satisfied doctors + One happy patient
When requesting to have your vitamin D levels checked, it is important to ask for the 25(OH)D(3) or 25-hydroxyvitamin D test which is necessary to detect true deficiency.
In September 2008, I measured severely deficient in vitamin D at 7.8 ng/mL. Since then, we have been randomly checking the progress on my attempt to increase those levels. So far the highest I have obtained is 44 ng/mL.
Vitamin D Deficiency
As you begin to read the vast amount of research conducted on vitamin D and its effect on various diseases, you will soon see that finding a recommendation for optimum serum levels can be difficult. For one thing, the recommendations have changed dramatically over time. For another, there are two different measuring systems referenced in the literature.
nanograms per millilitre (ng/mL) or nanomoles per litre (nmol/L)
For simplicity, here is a chart which summarizes the current recommendations:
25(OH)D Levels and Health Implications
You can see how my measly 7.8 ng/mL is nonexistent. Last month's results came back at 36 ng/mL. Good, right? 36 ng/mL measures "sufficiency." Well, not really.
Read this post in its entirety:
Vitamin D and Multiple Sclerosis: Where Do I Stand?