Breast tumor 1 inch bigger for each 1 ng decrease in vitamin D
Details at Vitamin D Council and many other places on the web
Reported at San Antonio Breast Cancer Symposium Dec 2011
For 1,800 early breast cancer patients, 2003 and 2010.
Also statistically significant: if < 30 ng: “significant increase in the risk of relapse after three years”
Suspect that a majority of the women with breast cancer had low vitamin D levels.
Those who had very low levels apparently had larger tumors
CLICK HERE for larger image and more charts of disease incidence
Aromatese Inhibitors for Breast Cancer consume Calcium which uses up vitamin D
Speculation:tumors consume vitamin D, and then the longer the tumor grows, the lower the level of vitamin D
Possible Vitamin D interactions and vicious circles - which include colon cancer, diabetes, obesity, HIV, and MS
Does Cancer Deplete Vitamin D From Your Body? wonder about aromatase inhibitors
Vitamin D deficiency and bone mineral density in postmenopausal women receiving aromatase inhibitors for early breast cancer Maturitas 2010
Effects of aromatase inhibition on bone mineral density and bone turnover in older men with low testosterone levels 2009 with full text online
Aromatase inhibitor chemotherapy after breast cancer not associated with vitamin D levels – Dec 2011
See also VitaminDWiki
50 percent less breast cancer when have enough vitamin D - Sept 2011
Cancer Treatment and Prevention UK May 2011 Grassroots on Breast Cancer
2X more likely to survive breast cancer disease free if lots of vitamin D – July 2011
Cloudiness and Breast Cancer PDF file
Need lots of UV AND vitamin D to reduce risk of breast cancer – Jan 2011
Breast Cancer vs latitude Gapminder - Great U shaped curve
No reduction in Breast Cancer when vitamin D less than 40 ng - May 2011
Breast Cancer recurred more when less than 20 ng of vitamin D – Oct 2010
Breast cancer may result from poor interaction with vitamin D – Sept 2010 CYP27B1 and CYP24A1
Women with breast cancer safely take 10,000 IU daily – Jan 2010
Recurrence of breast cancer not associated with vitamin D levels – Jan 2011
Breast cancer reduced by 10 percent when vitamin D levels exceeded 27 ng
Meta-analysis not find low vitamin D years before breast cancer – Aug 2010
Meta-analysis confirmed that vitamin D and calcium prevents breast cancer – June 2010
Breast cancer reduced by 45 percent for women with the most vitamin D – July 2010
Breast cancer association with low vitamin D suggested by Meta-analysis -April 2010
Need lots of UV AND vitamin D to reduce risk of breast cancer – Jan 2011
See also Web
Grass Roots Health lots of information on Breast Cancer and vitamin D, many videos