2900 IU not enough vitamin D to deal with Breast Cancer – Feb 2013

Vitamin D: Are We Ready to Supplement for Breast Cancer Prevention and Treatment?

ISRN Oncol. 2013; 2013: 483687. Published online 2013 February 26. doi: 10.1155/2013/483687
Katherine D. Crew 1 , 2 , 3 ,*

Vitamin D deficiency is a potentially modifiable risk factor that may be targeted for breast cancer prevention and treatment. Preclinical studies support various antitumor effects of vitamin D in breast cancer. Numerous observational studies have reported an inverse association between vitamin D status, including circulating 25-hydroxyvitamin D (25(OH)D) levels, and breast cancer risk. The relationship between vitamin D and mammographic density, a strong predictor of breast cancer risk, remains unclear. Studies analyzing the link between genetic polymorphisms in vitamin D pathway genes and breast cancer incidence and prognosis have yielded inconsistent results. Vitamin D deficiency among breast cancer patients has been associated with poorer clinical outcomes and increased mortality. Despite a number of clinical trials of vitamin D supplementation, the efficacy, optimal dosage of vitamin D, and target blood level of 25(OH)D for breast cancer prevention have yet to be determined. Even with substantial literature on vitamin D and breast cancer, future studies need to focus on gaining a better understanding of the biologic effects of vitamin D in breast tissue. Despite compelling data from experimental and observational studies, there is still insufficient data from clinical trials to make recommendations for vitamin D supplementation for breast cancer prevention or treatment.
--
PDF is attached at the bottom of this page

See also VitaminDWiki

• Category Cancer - Breast has 259 items
• If have breast cancer, should increase vitamin D to more than 30 ng – Jan 2012
• Breast Cancer chance decreased 16 percent for every extra ng of vitamin D – Jan 2013
• Vitamin D and Breast Cancer Incidence and Outcome - Jan 2013
• Not enough women willing to stop taking vitamin D to permit breast cancer clinical trial – June 2012
• 8000 IU supplementation to people with various cancers – Nov 2010