Printer Friendly

Avoiding calcification.

I am writing in response to "Doubts Emerge About Widespread Use of Vitamin D Supplementation" (March 1, 2010, p. 1), particularly with regard to the possibility of increased arterial calcification. Although one study was cited as linking higher vitamin D levels in African Americans to increased calcification in the carotids and aorta, most of the article referred to a study looking at the effects of calcium supplementation, not vitamin D, on cardiovascular events. Since vitamin D deficiency is associated with an increase in PTH and an increase in osteoclast activity, it seems that supplementation of calcium alone (without adequate vitamin D) is more likely to cause the problem of soft tissue calcification. Perhaps the article should have also addressed doubts about the widely recommended use of 1,000 mg of supplemental calcium daily. I think the balance of the two is important. I now aim to have people get their vitamin D levels up at least to 30 ng/mL but try to meet most of their calcium needs through food. I then try to limit supplemental calcium for most people to no more than 500-750 mg daily.

That said, I am prompted to further explore the possibility that there may be race-related optimal levels of vitamin D.

Cindy Geyer, M.D.

Lenox, Mass.

COPYRIGHT 2010 International Medical News Group
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2010 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Author:Geyer, Cindy
Publication:Internal Medicine News
Article Type:Letter to the editor
Date:Apr 15, 2010
Previous Article:Now is the time to hire new employees.
Next Article:Insurer meddling still a problem.

Terms of use | Privacy policy | Copyright © 2019 Farlex, Inc. | Feedback | For webmasters