Microplastics and Prostate Cancer: What the Latest Research Reveals

A newly published study has identified a concerning link between microplastics and prostate cancer, adding to a growing body of evidence that environmental pollutants may play a significant role in the development of hormone-sensitive cancers. The findings, presented at ASCO 2026, suggest that the chemicals many of us are exposed to daily at ever-increasing levels may be contributing to the rising incidence of prostate cancer worldwide.

What the study found

Using high-powered microscopes, scientists from New York examined prostate biopsy specimens for the presence of microplastics and nanoparticles. Tiny fragments formed from the breakdown of the billions of plastic products used across the world every day. The results were striking: microplastics were detected in over 60% of specimens examined. More significantly, men with prostate cancer showed statistically higher levels of plastic contamination compared to those with benign disease. The researchers also found greater concentrations of these microscopic plastic fragments inside tumour tissue than in surrounding healthy tissue.

These findings were presented at the ASCO 2026 conference and led the majority of attending clinicians to conclude that microplastic exposure may have directly contributed to cancer development in these patients.

Why are microplastics harmful?

Microplastics belong to a broader category of environmental chemicals known as endocrine-disrupting chemicals (EDCs), sometimes referred to as xenoestrogens. The most well-known of these are bisphenol A (BPA) and polychlorinated biphenyls (PCBs), commonly found in polycarbonate plastic bottles, food containers and packaging. These chemicals have molecular structures similar to oestrogen, which can stimulate hormone-sensitive tissues to grow rapidly and in an uncontrolled manner, a process directly relevant to prostate cancer biology.

Other xenoestrogenic pollutants include organochlorines found in car exhaust, fuels, synthetic perfumes and many household cleaning products. These chemicals can irritate tissues, promote chronic inflammation. Itself a known precursor and driver of cancer and cause epigenetic disruption of DNA, leading to the overexpression of genes that promote tumour growth.

Other evidence of harm from plastics and xenoestrogenic chemicals

While the prostate cancer finding is new, the broader evidence of harm from plastic-derived pollutants has been accumulating for several years. Laboratory studies have shown that when oestrogenic pollutants derived from plastics are administered to mice, they induce and promote hormone-sensitive cancers including breast, ovarian and uterine tumours.

In human research, a study published in The New England Journal of Medicine in 2024 found that patients with micro and nanoplastics detected in the plaques of their carotid arteries were approximately 4.5 times more likely to suffer a stroke or heart attack. A separate report published in the International Journal of Andrology linked oestrogenic pollutants found in breast milk with an increased rate of testicular cancer in male children.

How to reduce your exposure to microplastics and xenoestrogens

While it is now virtually impossible to eliminate exposure to microplastics entirely. Environmental scientists increasingly refer to them as forever chemicals, there are practical steps that can meaningfully reduce your daily exposure.

Plastics and food storage

• Choose non-plastic packaging where possible
• Use cardboard or refillable containers for washing liquids, dishwasher tablets and laundry products
• Store food and drinks in glass or ceramic containers rather than plastic
• Never heat food in plastic containers or leave plastic water bottles in direct sunlight or warm environments, as heat accelerates the leaching of chemicals into food and drink
• Look for products packaged in plant-based plastics such as PLA where available
• Choose whole, fresh foods where possible while processed foods often contain synthetic additives and come in plastic packaging

Air pollution and household chemicals

• Avoid exercising beside busy roads where possible
• Limit the number of household cleaning products you use
• Ventilate your home well when cleaning products are in use
• Keep indoor plants as they help filter indoor air pollutants
• Avoid synthetic air fresheners

Personal care and cosmetics

• Use plain or naturally scented soap instead of synthetic shower gels
• Reduce use of cosmetics, synthetic perfumes and deodorants where possible
• Avoid shampoos and gels containing parabens or synthetic preservatives
• Limit antiperspirant use and avoid applying it immediately after shaving
• Consider natural alternatives containing essential oils for personal care

The role of lifestyle and nutritional strategies

Reducing plastic exposure is only one piece of the picture. Given the role of inflammation and hormonal disruption in prostate cancer development, broader lifestyle strategies are equally important. Maintaining a healthy weight, exercising regularly, ensuring adequate vitamin D levels, and increasing intake of phytochemical-rich foods are all evidence-based approaches to reducing prostate cancer risk.

In this context, supplements such as YourPhyto a phytochemical-rich supplement developed from insights of national clinical research and YourGutPlus+ a multi-strain probiotic evaluated in three independent clinical studies, may offer meaningful complementary support. The combination of YourPhyto and YourGutPlus+ was evaluated in a double-blind, randomised clinical trial in men with early-stage prostate cancer, with results showing slowed cancer progression, reduced inflammatory markers and improved quality of life, published in European Urology Oncology.

These nutritional approaches do not replace medical treatment, but alongside efforts to reduce environmental exposure and maintain a healthy lifestyle, they represent a practical and evidence-based complementary strategy.

What comes next

The researchers stress that further studies are needed to fully establish the causal relationship between microplastic exposure and prostate cancer. What is clear, however, is that the evidence of harm from environmental pollutants is strengthening and that the steps individuals can take today to reduce exposure are straightforward and actionable. In the meantime, concentrating on lifestyle and nutritional factors that support both hormonal balance and immune health remains the most practical approach available.

Citation

Scientific Editor. "Microplastics and Prostate Cancer." Keep Healthy, 10 March 2026. Available at: https://keep-healthy.com/microplastics-and-prostate-cancer/