Omega-3 consumption has “no overall association” with prostate cancer, according to a recent meta-analysis that disputes previous research.
The journal Nutrition and Cancer published the study, which will undoubtedly receive the same widespread media coverage as the 2013 study linking omega-3s to prostate cancer. For the new research, scientists analyzed the data from more than 460,000 participants, looking at 12 self-reported dietary intake studies and nine biomarker studies published through 2013.
Accounting for the bulk of the analysis population with 446,243 participants, the dietary intake studies showed no overall association between omega-3 use and prostate cancer. Some even indicated a small inverse association, noted the researchers. The biomarker studies, involving 14,897 participants, also showed no overall association between omega-3 use and prostate cancer. Although researchers did find a majority of positive associations in the biomarker studies, they were so weak in magnitude as to be statistically insignificant, noted an article about the research on nutritionaloutlook.com.
“A plausible biological mechanism by which LCω-3PUFA could facilitate prostate carcinogenesis has not been identified, whereas anti-inflammatory properties of these fatty acids would suggest anti-carcinogenic effects,” wrote the researchers.
Meanwhile, the Global Organization for EPA and DHA Omega-3s continues its national PR campaign entitled, “Omega-3s: Always a Good Idea."