Bowel cancer symptoms: The shape and size of your poo is a sign

Processed meat is any meat that has been treated to preserve it and/or add flavour – for example, bacon, salami, sausages, canned meat, or chicken nuggets.

The government recommends that people eating more than 90 grams of red and processed meat a day should reduce it to 70 grams or less.

A linked risk factor is obesity, which estimates suggest accounts for 11 out of 100 bowel cancers.

Obesity means being very overweight with a body mass index (BMI) of 30 or higher. And being overweight is a BMI of between 25 and 30.