Fish, particularly oily fish such as salmon, sardines, and mackerel, are often recommended for prostate health due to their high content of omega-3 fatty acids (EPA and DHA). Scientific studies have explored the relationship between fish consumption and prostate health, with some epidemiological evidence suggesting that diets rich in omega-3s may be associated with a reduced risk of prostate inflammation and possibly lower risk of aggressive prostate cancer. For example, a meta-analysis published in the American Journal of Clinical Nutrition (2010) found a modest inverse association between fish intake and prostate cancer mortality, though not incidence. The anti-inflammatory properties of omega-3 fatty acids are proposed as a potential mechanism for these effects.

However, evidence is mixed. Some studies have not found a significant reduction in prostate cancer risk with increased fish or omega-3 intake, and a few have even suggested a possible association between high blood levels of certain omega-3s and increased prostate cancer risk, though these findings remain controversial and may be influenced by confounding factors.

In summary, while there is some scientific rationale and moderate evidence for fish supporting prostate health, especially through anti-inflammatory mechanisms, the evidence is not definitive. Fish is not traditionally used specifically for prostate health, but its role is supported by modern nutritional science to a moderate extent.