An oncologist has highlighted two dietary items to reduce cancer risk, as Cancer Research UK estimates that around four in 10 cancers could be prevented through lifestyle changes. Dr Jiri Kubes, a radiation oncologist and medical director of the Proton Therapy Center, recommends cutting back on processed meat and alcohol.
Processed Meat and Alcohol: Known Carcinogens
Dr Kubes stated: “Some of what drives cancer is outside of our control, such as genetics and age, but diet and lifestyle do play a part. Processed meat and alcohol have both been named as carcinogens by the World Health Organisation. The advice is that cutting back on both of these things is better for overall health.”
Processed meat includes items preserved by smoking, curing, or salting, such as ham, sausages, hot dogs, and corned beef. The World Health Organisation has found sufficient evidence linking processed meat to colorectal cancer. Government guidelines suggest that anyone consuming more than 90g of processed meat daily should reduce intake to around 70g per day.
How Alcohol Increases Cancer Risk
Alcohol consumption damages cells and impairs their repair mechanisms. It can also disrupt hormones, causing cells to divide more frequently and raising the risk of cancer development. Dr Kubes explained: “Drinking alcohol raises the risk of cancer in the liver and colon, among others. It is not known at which point the risks are raised, but we know the more alcohol you drink, the higher your risk.”
Lifestyle Recommendations for Cancer Prevention
Dr Kubes emphasized moderation for processed meats and stressed the importance of a healthy diet rich in fruit, wholegrains, and vegetables. He added: “Maintaining a healthy weight and keeping active are really important for overall health. If you are worried about your risk of any types of cancers or any symptoms, always speak to your doctor.”
The Proton Therapy Center, which specializes in advanced technology, has treated hundreds of UK patients since opening in 2012.



