Vitamin D reduced Breast Cancer mortality in 9 out of 9 studies, yet still no consensus – April 2019

The Significance of Vitamin D Status in Breast Cancer: A State of the Science Review

J. of Midwifery and Womans’s Heatlh https://doi.org/10.1111/jmwh.12968
Mary McNamara DNP, FNP‐BC Kelly D. Rosenberger CNM, DNP, WHNP‐BC
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VitaminDWiki

No professional consensus and more studies are needed.
Suspect these authors will continue to say that more data is needed when 18 out of 18 come to the same conclusion

Breast Cancer and Vitamin D review – March 2018
Vitamin D prevents breast cancer, reduces BC mortality, and reduces BC chemotherapy problems – Sept 2018
Diagnosed with breast cancer – take vitamin D to cut chance of death by half – July 2018
Breast Cancer prevented by Vitamin D (most studies concur) – Dec 2017

Overview Breast Cancer and Vitamin D contains the following summary and sections


Items in both categories Breast Cancer and Mortality are listed here:


Items in both categories Breast Cancer and Meta-analysis are listed here:


Items in both categories Breast Cancer and Top News are listed here:


Prediction by VitaminDWiki:
Soon so many women with Breast Cancer will be taking Vitamin D that it will become difficult to find participants for Randomized Controlled Trials.

 Download the PDF from Sci-Hub via VitaminDWiki

The potential role of vitamin D in the development of breast cancer has been the subject of considerable interest. Laboratory and genetic studies demonstrate promising anticarcinogenic effects of vitamin D. However, inconsistencies persist in results of human studies that have assessed vitamin D supplementation for the prevention of primary and secondary cancers. Despite these discrepancies, screening for vitamin D deficiency and vitamin D supplementation have increased dramatically in the past decade. No official institutional guidelines recommend vitamin D supplementation for cancer prevention, and yet these newly adopted practice norms have outpaced rigorous scientific study. Higher circulating levels of vitamin D [25‐hydroxyvitamin D, or 25(OH)D] appear to be associated with reduced risk and improved survivorship of certain malignancies. However, the association has not been found for all cancers. This state of the science review examines the association between vitamin D supplementation, circulating 25(OH)D level, vitamin D receptor polymorphisms, and the risk and mortality of breast cancer. The review addresses the role of supplementation and optimal 25(OH)D levels.

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