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Am J Clin Nutr. 2010 Nov;92(5):1223-33. doi: 10.3945/ajcn.2010.29530. Epub 2010 Sep 15.

Fish consumption and prostate cancer risk: a review and meta-analysis.

Author information

  • 1Division of Urology, McGill University Health Centre, Montreal, Canada. szymanski.konrad@gmail.com

Abstract

BACKGROUND:

Prostate cancer incidence varies 60-fold globally, which suggests the roles of lifestyle and dietary factors in its cause. To our knowledge, a comprehensive assessment of the association between fish consumption and prostate cancer incidence and mortality has not been reported.

OBJECTIVE:

We conducted a meta-analysis of fish intake and prostate cancer by focusing on the incidence of prostate cancer and prostate cancer-specific mortality and included subgroup analyses based on race, fish type, method of fish preparation, and high-grade and high-stage cancer.

DESIGN:

We searched MEDLINE and EMBASE databases (May 2009) for case-control and cohort studies that assessed fish intake and prostate cancer risk. Two authors independently assessed eligibility and extracted data.

RESULTS:

There was no association between fish consumption and a significant reduction in prostate cancer incidence [12 case-control studies (n = 5777 cases and 9805 control subjects), odds ratio (OR): 0.85; 95% CI: 0.72, 1.00; and 12 cohort studies (n = 445,820), relative risk (RR): 1.01; 95% CI: 0.90, 1.14]. It was not possible to perform a meta-analysis for high-grade disease (one case-control study, OR: 1.44; 95% CI: 0.58, 3.03), locally advanced disease (one cohort study, RR: 0.80; 95% CI: 0.61, 1.13), or metastatic disease (one cohort study, RR: 0.56; 95% CI: 0.37, 0.86). There was an association between fish consumption and a significant 63% reduction in prostate cancer-specific mortality [4 cohort studies (n = 49,661), RR: 0.37; 95% CI: 0.18, 0.74].

CONCLUSION:

Our analyses provide no strong evidence of a protective association of fish consumption with prostate cancer incidence but showed a significant 63% reduction in prostate cancer-specific mortality.

PMID:
20844069
[PubMed - indexed for MEDLINE]
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