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Mr Lamah continues to operate as a colorectal surgeon at the Royal Sussex County Hospital in Brighton.

“When I was first diagnosed with Stage 4 colorectal cancer, it was too personal to share,” Cisneros said during a recent studio session with her band at Blue Beach Studios in Redondo Beach.

"Quite a few members of my family have had cancer - like colorectal cancers, or endometrial," he explained.

Prof Cornish, a colorectal surgeon, said pelvic health issues affected both men and women.

Nutrition expert Prof Janet Cade, from the University of Leeds, said the paper "provides important evidence showing that overall diet can influence risk of colorectal cancer".