In a significant step forward for cancer treatment, a new international study has demonstrated that simple dietary changes, including specific supplements and probiotics, can slow the progression of prostate cancer in men.
The Power of Food and 'Friendly' Bacteria
The research, led by a team from the University of Bedfordshire and published in the European Urology Oncology journal, focused on 212 men with low-risk prostate cancer. Over a four-month period, all participants were given a vegetable-rich dietary supplement containing a blend of broccoli, turmeric, pomegranate, green tea, ginger, and cranberry.
These foods were selected for their high levels of phytochemicals, known for their antioxidant, anti-inflammatory, and potential anti-cancer properties. Alongside this, half of the men were also given a probiotic containing the Lactobacillus bacteria, while the other half received a placebo.
Slowing Disease and Improving Wellbeing
The results were striking. The study found that boosting the diets of patients with these supplements significantly slowed the rate of increase of prostate-specific antigen (PSA) in the blood, a key indicator of disease activity. This effect was even more pronounced in the group that also took the probiotic.
Furthermore, the men reported tangible improvements in their health. Urinary symptoms decreased, inflammation was reduced, and physical strength improved, highlighting benefits beyond just cancer markers.
First author Professor Robert Thomas, of the University of Bedfordshire and a consultant clinical oncologist, stated: "This study shows, for the first time, that improving the balance of bacteria in the gut can slow prostate cancer activity while also improving important aspects of men's health."
A New Frontier: The Gut-Cancer Connection
The trial underscores the growing scientific understanding of the microbiome—the community of microorganisms in our gut—and its intimate relationship with our immune system and overall health. Illness and poor diet can disrupt this balance, but the research suggests it can be positively influenced.
Dr Jeffrey Aldous, senior lecturer in exercise physiology at the University of Bedfordshire, noted the wider implications: "This research helps us understand how targeted dietary strategies may influence the gut microbiome in ways that appear to benefit both cancer-related markers and overall wellbeing."
While welcoming the findings, experts caution that more research is needed. Dr Hayley Luxton from Prostate Cancer UK called the study "encouraging" but added, "While more research is needed to say exactly what role probiotics and supplements can play, having a balanced, healthy diet remains a good idea."
The trial, which involved experts from Cambridge University Hospitals, Bedford Hospital, and international colleagues from the US and Australia, was conducted between 2025 and 2026, with results announced in January 2026. It opens a promising new, non-invasive avenue for supporting cancer patients alongside conventional treatments.
