Stephanie Desmon, Johns Hopkins Medicine, Jan 23, 2012, says Vitamin D—so lauded these days for bone health and also heart protection--can cause harm if above the low end of normal.
Increasing levels of Vitamin D in the blood are linked with lower levels of a popular marker for cardio inflammation—c-reactive protein or CRP. That sounds good—but for adults without cardio symptoms but with relatively low Vit D levels, lower levels of inflammation were found.
This led them to say that higher levels of Vit D did not curtail inflammation more. This appears in the Jan 15th American J of Cardiology.
Be sure the supplement is indicated for you. And—I would add—make sure your doctor knows about these findings.
2 comments:
C-reactive study is not a concern
- Actual raw data does NOT show C-Reactive Protein increasing with vitamin D (but it does increase when adjusted for obesity)
- Even after data manipulation by the study, the increase in C-Reactive Protein at 50 ng of vitamin D is tiny
- C-Reactive Protein test results have a huge variability(external link) – even with the same patient (see graph below)
- C-Reactive Protein test is not universally agreed to be a predictor of heart problems
Details at
http://www.vitamindwiki.com/tiki-index.php?page_id=2321
True on CRP--I don't even get tested for it...but since they got a cheapish Vit D test every woman I know has been told she needs it. I am advising my readers to look into it--question it.
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