Breast Health

Vitamin D and Breast Cancer Prevention

Posted by on Nov 18, 2013

healthy breasts

My mother lived thru the devastation of breast cancer for 15 years. Her journey brought me great awareness about maintaining a healthy lifestyle.

The news about vitamin D research Being out in the sun is an integral part of my life. I also supplement to keep optimal blood levels of D3.

In a new study published in the American Journal of Clinical Nutrition, researchers analyzed the relationship between serum vitamin D concentrations and the risk of breast cancer. The participants included 240 Saudi women, half of whom had been diagnosed with breast cancer (case group) and the other half that were free of cancer (control group).

The average serum vitamin D level of the women with cancer was 9.4 ng/ml (23.5 nmol/L), while the control group had an average vitamin D level of 12.31 ng/ml (30.7 nmol/L). The difference in the groups was statistically significant. Most experts, including the authors of this study, recommend a vitamin D level of at least 20 ng/ml. Only 6.7% of the case group met this recommendation, while 27.5% of controls did.

In total, this study provides statistically significant results to support previous research showing a link between breast cancer risk and vitamin D status.


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Yousef FM, Jacobs ET, Kang PT, et al. Vitamin D status and breast cancer in Saudi Arabian women: case-control study. Am J Clin Nutr. 2013;98(1):105-10.


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