The authors of this explained they could not identify if the risk of prostate cancer was due to eating fish rich in omega-3 fatty acids (such as salmon or herring), or from fish oil supplements. But whatever the source, the study suggests higher overall fish oil levels may pose a more significant prostate cancer risk.
BUT while the findings of this study suggest that there is a statistical association between an increased risk of developing prostate cancer and fish oil consumption, the authors note these findings do not demonstrate fish oil consumption causes prostate cancer.
So these results need to be further assessed in future studies.
It is worthy of noting that the results of this study suggest that men with a family history of prostate cancer should discuss with their physician whether it is safe for them to take fish oil supplements or regularly eat salmon, herring and other oily fish.
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