Fish Oil and Prostate Cancer

BOSTON—According to a recent study, fish intake was unrelated to prostate cancer incidence, however it may improve prostate cancer survival (Am J Clin Nutr. 2008;88(5):1297-1303). The prospective cohort study examined 20,167 men participating in the Physician's Health Study who were free of cancer in 1983. During 382,144 person-years of follow-up, 2,161 men were diagnosed with prostate cancer and 230 died of prostate cancer. Fish intake was unrelated to prostate cancer incidence. Survival analysis among the men diagnosed with prostate cancer revealed hose consuming fish five times a week had a 48-percent lower risk of prostate cancer death than did men consuming fish less than once weekly. A similar association was found between seafood omega–3 fatty acid intake and prostate  cancer. These associations became stronger when the analyses were restricted to clinically detected cases.