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# Fish Oil Increases Prostate Cancer Risk
- URL: https://www.foodconsumer.org/fish_oil_prostate_cancer_0719130516/
- Published: 2013-07-19T18:15:00.000Z
- Updated: 2026-09-15T13:57:58.000Z
- Description: Tracking 834 men with prostate cancer and 1,393 without, a Journal of the National Cancer Institute study found those with the highest blood omega-3 concentrations were 43 percent more likely to have the disease and 71 percent more likely to have a high-grade form.
- Author: Food Consumer
- Tags: Supplements, Nutrition, #vivvo-import

The omega-3 fatty acids found in fish oil pills may increase men’s risk of developing prostate cancer, according to a large study published in the *Journal of the National Cancer Institute*. Researchers tracked 834 men with prostate cancer, of which 156 had high-grade cancer, and 1393 men without cancer. They found a significant increase in prostate cancer risk among men with high concentrations of omega-3s in their blood. These men were 43 percent more likely to develop prostate cancer and 71 percent more likely to develop a high-grade form of the disease, compared with men who had lower levels of omega-3\. The authors recommend evaluating these risks before increasing omega-3 supplementation.

Brasky TM, Darke AK, Song X, et al. Plasma phospholipid fatty acids and prostate cancer risk in the SELECT Trial. *J Natl Cancer Inst*. Published ahead of print July 10, 2013.  

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