Public Health Article

A systematic review of dietary, nutritional, and physical activity interventions for the prevention of prostate cancer progression and mortality

Review Quality Rating: 8 (strong)

Citation: Hackshaw-McGeagh LE, Perry RE, Leach VA, Qandil S, Jeffreys M, Martin RM, & Lane JA. (2015). A systematic review of dietary, nutritional, and physical activity interventions for the prevention of prostate cancer progression and mortality. Cancer Causes & Control, 26(11), 1521-1550.

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PURPOSE:Given the long-term, although potentially fatal, nature of prostate cancer, there is increasing observational evidence for the reduction in disease progression and mortality through changes in lifestyle factors.
METHODS:We systematically reviewed dietary, nutritional, and physical activity randomized interventions aimed at modifying prostate cancer progression and disease-specific mortality, including a detailed assessment of risk of bias and methodological quality.
RESULTS:Forty-four randomized controlled trials of lifestyle interventions, with prostate cancer progression or mortality outcomes, were identified. Substantial heterogeneity of the data prevented a meta-analysis. The included trials involved 3,418 prostate cancer patients, median 64 men per trial, from 13 countries. A trial of a nutritional supplement of pomegranate seed, green tea, broccoli, and turmeric; a trial comparing flaxseed, low-fat diet, flaxseed, and low-fat diet versus usual diet; and a trial supplementing soy, lycopene, selenium, and coenzyme Q10, all demonstrated beneficial effects. These trials were also assessed as having low risk of bias and high methodological quality (as were seven other trials with no evidence of benefit). The remaining trials were either underpowered, at high or unclear risk of bias, inadequately reported, of short duration or measured surrogate outcomes of unproven relationship to mortality or disease progression, which precluded any benefits reported being reliable.
CONCLUSION:Large, well-designed randomized trials with clinical endpoints are recommended for lifestyle modification interventions.


Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Cancer, Community, Home, Male, Nutrition, Physical Activity, Primary health care provider office (e.g., Public health nurse, dietitian, social worker), Seniors (60+ years)

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