Dr William Li, a physician and scientist, has outlined four simple rules to help reduce cancer risk, including avoiding microplastics found in plastic water bottles. Speaking on the ZOE podcast, he emphasised that everyday habits can make a significant difference in cancer prevention.
Dr Li's first rule is to adopt a Mediterranean or Asian diet while reducing consumption of American and ultra-processed foods. Second, he recommends drinking coffee and tea instead of soda, as these beverages contain polyphenols that enhance the body's cancer-fighting responses.
The third rule is to stay active daily, even without a personal trainer, as movement boosts the immune system, gut microbiome, and reduces inflammation. Finally, he advises avoiding toxins, particularly microplastics from plastic food and drink containers. He urged listeners not to drink water from plastic bottles, especially when travelling.
While the American Cancer Society notes that there is insufficient evidence to confirm microplastics cause cancer, research has shown they can damage DNA, cause inflammation, and disrupt gut health—processes known to promote cancer growth. However, Cancer Research UK states that food and drink stored in plastic does not cause cancer, as chemical levels are too low to be harmful.
