In March 2019 researchers from the USA published their overview of the rationale for dietary interventions to reduce prostate cancer risk and progression. Recent findings have further reinforced the association between insulin resistance and prostate cancer. Dietary strategies aimed at reducing risks attached to the metabolic syndrome, diabetes, and obesity are currently being explored. At the present time, low carbohydrate/ketogenic diets are favoured due to their impact on weight loss and and improving metabolic risks. It is also thought that lycopene (tomatoes contain high concentrations of this which is a type of carentoid) may also play a role in prostate cancer prevention and prognosis.
Kaiser A et al. The evolving role of diet in prostate cancer risk and progression. Curr Opin Oncol. 2019 Mar 15. [Epub ahead of print]