Dietary Influences on Prostate Cancer Risk

Prostate cancer risk is shaped by the overall quality and composition of the diet, with particular attention to macronutrient balance, food processing and bioactive constituents. Diets high in saturated and trans fats, red and processed meats and high-fat dairy products are often linked to elevated prostate cancer incidence, while those rich in fruits, vegetables, whole grains, fish and fibre appear to confer modest protective effects. Mediterranean-style patterns characterised by olive oil, legumes, vegetables, fruits and oily fish contrast with Western patterns dominated by refined carbohydrates, processed foods and red meats, the latter being associated with greater disease risk. Underlying mechanisms include modulation of sex hormones, chronic inflammation, oxidative stress and shifts in gut microbiota that may influence tumour initiation and progression. Bioactive compounds such as lycopene, isoflavones, polyphenols and omega-3 fatty acids exert antioxidant and anti-inflammatory actions, while dietary fibre supports beneficial bacterial metabolites. Global analyses reveal that national nutrient supply profiles—particularly ratios of animal to plant protein and the share of energy from cereals—correlate with prostate cancer incidence and mortality, highlighting socioeconomic and geographic disparities. These insights underscore the potential for dietary modification as a non-invasive, population-level strategy to reduce prostate cancer burden and inform personalised nutritional recommendations.

Research from Nature Portfolio

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Dietary Influences on Prostate Cancer Risk publication trend

The graph below shows the total number of articles in dietary influences on prostate cancer risk across all publications each year (not limited to Nature Index journals).

Technical terms

Dietary pattern: A composite measure of habitual food and nutrient combinations that captures overall eating behaviour rather than isolated components.

Dose–response meta-analysis: A statistical approach that quantifies how changes in the amount of an exposure, such as food intake, relate to variations in disease risk across studies.

Hazard ratio (HR): A relative measure of the instantaneous risk of an event (for example, cancer diagnosis) occurring in one group versus another over time.

Prostate cancer-specific mortality: The rate of death directly attributed to prostate cancer, excluding other causes, used to assess survival outcomes.

References

1. Fish consumption and risk of prostate cancer or its mortality: an updated systematic review and dose–response meta-analysis of prospective cohort studies. Frontiers in Nutrition (2023).
2. The Impact of Nutrient Supply on Prostate Cancer Risk Worldwide. Nutrients (2023).
3. Higher insoluble fiber intake is associated with a lower risk of prostate cancer: results from the PLCO cohort. BMC Public Health (2024).