Looking Fit :: New Study Contradicts Previous Vitamin D, Breast Cancer Findings
A new study contradicts findings regarding the link between vitamin D and breast cancer, suggesting that 25-hydroxyvitamin D has no preventative effect on breast cancer. The Women’s Health Initiative study, involving more than 36,000 postmenopausal women, found a strong correlation between vitamin D levels, high body mass index (BMI) and low physical activity (the latter two are recognized breast-cancer risk factors). However, they found no association between vitamin D levels and breast-cancer risk after adjusting for BMI and physical activity. Source: Hemonctoday.comRelated ArticlesStudy: Vitamin D May Reduce Breast Cancer RiskBlog: Reader Response To Vitamin D, Breast Cancer Study
William Grant September 12, 2008 11:50:23 AM
The WHI used only 400 IU of vitamin D3 per day. That amount has only been found to reduce the risk of developing rickets. For another paper showing a benefit of vitamin D in reducing the risk of breast cancer, see "Serum 25-hydroxyvitamin D and risk of post-menopausal breast cancer--results of a large case-control study. Carcinogenesis," by Abbas S, Linseisen J, Slanger T, Kropp S, Mutschelknauss EJ, Flesch-Janys D, Chang-Claude J., on www.pubmed.gov. Other vitamin D/cancer listings can be found there, too.Deb September 12, 2008 6:19:27 PM
This is an old study from 2006. Newer data shows this to be total BS because they are supplementing at deficient levels in the test. 400 IUs provides an insufficient amount of D. This is very misleading.JustSoYaKnow September 13, 2008 5:20:00 AM
PLEASE NOTE: These study subjects were given ONLY 400 IU of vitamin D, which all available research has made clear is NOT ENOUGH! Don't fall for the headlines on this one.Hutchinson September 14, 2008 2:03:16 AM
This study used 400 IUs of daily vitamin D; however, our bodies need between 3,000 and 5,000 IUs daily to function properly. 400 IU is such a trivial contribution to this total it is unrealistic to expect a significant response. Think of it this way: If you handed 40 cents to poor people, would you see a significant reduction in overall poverty? No--but would you conclude from the failure of a 40-cent donation that money doesn't help poor people?Mike June 19, 2009 3:57:49 AM
The article forgets to mention that the dose of vitamin D uses was insignificant!! anyone worried about cancer should know the data on vitamin D and cancer prevention.. Take a look at the site vitaminD3world for some good summaries. The site also offers a good newsletter and recently launched a new micro pill? formulation of vitamin D, and offers 400 micro pills at a very good price.