Vitamin D and cancer

Fish oil capsules with omega-3 fatty acids preserve brain health

High levels of vitamin D have been related to lower levels of breast cancer, report scientists from the University of California San Diego. Expanding on epidemiological studies relating higher cancer levels in individuals with vitamin D deficiency,  the current study published in PLOS One utilized data from two randomized  and one prospective clinical trials. Postmenopausal women with levels of at least 60 ng/ml vitamin D had one fifth the incidence of breast cancer. This level is three times the 2010 recommendation by the National Academy of Medicine. Findings indicated a dose-response relationship — the higher the vitamin D level, the lower the breast cancer level.

Dietary supplements and sunshine provide the body with vitamin D. Different people require different amounts of supplements to reach target levels, so monitoring by a medical professional may be necessary. Keep in mind that very high levels of vitamin D are associated with serious side effects.


Tell us what you think

This form does not collect your email address. If you would like us to respond, please send questions to
This field is for validation purposes and should be left unchanged.
We’re sorry, you are not eligible for the nationwide COVID-OUT or ACTIV-6 studies, but you may be eligible for other federal trials:

And if you don’t find a match there, this slightly more complex clinical trials finder includes studies sponsored by companies as well:

Trials Today