Which Foods Can Lower Cancer Risk?

Recent evidence shows how diet might affect the risk for cancers of the gastrointestinal system.

  • There is plenty of research suggesting that a person’s diet can affect their risk of cancer, particularly gastrointestinal cancers.
  • Recent studies now add to that evidence, showing how different food items could either lower or heighten the risk of different forms of cancer.
  • One study from January 2025 suggests that cow’s milk and other calcium-reach foods could help lower the risk of colorectal cancer.
  • Another study, also from January, shows how fiber-rich foods may help lower colorectal cancer risk by causing bacteria in the gut to ‘switch on’ certain genes.
  • Finally, research published in December 2024 suggested that drinking four cups of coffee daily is associated with a lower risk of head and neck cancer.

Over the years, many studies have suggested that our diets could influence our risk of cancer, particularly the risk of cancers affecting the gastrointestinal system.

Red and processed meat consumption, for instance, is linked with an increased risk of many different forms of cancer, including breast, endometrial, and colorectal cancer.

By contrast, diets rich in fruit and vegetables, such as the Mediterranean diet, are associated with a lower risk of cancer.

Over the past couple of months, new evidence has emerged highlighting the likely role of diet in cancer risk and prevention.

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