Breaking news: Vitamin D level and breast cancer

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0199265


It is an association in an epidemiological study. But,

• The chart above shows the proportion of participants who were not diagnosed with breast cancer according to vitamin D level over the course of the study.
• The proportion of participants with breast cancer was 78% lower for women with vitamin D levels at 60 ng/ml or above compared to women with levels less than 20 ng/ml.