I am concerned because my Vitamin D level is also very low even know I am taking 50,000 units every Tuesday. I believe the kidney makes the vitamin D. I am sorry if it sounds like I don't know what I am talking about, I don't. That's why I am on this forum. Thank You
Yes, your Vitamin D (D3) level of 19.8 (reference 32-100) is very low. It should be 50-65. What does your doctor say about this low level?
The kidney does not make Vitamin D - it's made by sunlight on the skin, or via supplements. Almost all adults in northern latitudes are Vitamin D deficient. Worldwide, the deficiency percentage for adults approaches 50%.
50,000 units weekly (7,000 daily) is about what most doctors who are familiar with the most recent research on D are suggesting as a regular maintenance dose. (Note that the US RDA of 400IU daily is grossly inadequate, and is in the process of review.)
However, you probably require a therapeutic dosage based on your post. This would be much higher than the average 7,000 daily you are currently taking. This is clearly indicated by your low level of 19.8.
Vitamin D, once seen as only as a rickets preventative, is now understood to be critical in at least 32 genetic disease markers. Unfortunately, many doctors are unaware of Vitamin D developments. So I suggest you get a second opinion, or discuss the new research on D with your present MD.
Here's a link that may be helpful:
What causes Vitamin D Deficiency? (http://www.vitamind3-cholecalciferol.com/vitamin-d-deficiency.htm)
Don't be afraid to confront your physician - it's your health, and he'll probably be glad to be updated in this important area.