2,500 Cancer Diagnosis Could Be Avoided Each Week If Britons Made Lifestyle Changes.
Study shows that more than 2,500 people a week would avoid being diagnosed with cancer if they made lifestyle changes, such as exercising and lowering their weight research suggests.
Nearly 40 per cent of all cancers diagnosed in the UK every year could be avoided a new report by Cancer Research UK has found.
Smoking is the biggest avoidable cause of cancer, followed by excess weight, overexposure to UV radiation from the sun and sunbeds, drinking alcohol, eating too little fibre, and outdoor air pollution.
Experts presenting the data warned that with smoking rates continuing to go down and rates of obesity on the increase, obesity could overtake smoking as the biggest killer.
Cancer Research UK chief executive Sir Harpal Kumar said: "Obesity is potentially the new smoking if we're not careful.
"My sense would be it'll be some time in next couple of decades that we'll see those two switch around."
He said the landmark study demonstrates that prevention is the best way of beating the killer disease, adding that the Government could be doing "much more" to help people make healthier choices.
The latest figures, calculated from 2015 cancer data, show more than 135,500 cases of cancer a year could be prevented - equating to 37.7 per cent of all cancers diagnosed in the UK every year and rising to 41.5 per cent in Scotland.
Smoking remains the biggest preventable cause of cancer - responsible for around 32,200 cases of cancer in men and around 22,000 in women.
Excess weight is the second biggest preventable cause of cancer, with around 22,800 (6.3%) cases down to being overweight or obese.
The research published in the British Journal of Cancer shows that obesity causes 13 different types of cancer, including bowel, breast, womb and kidney, and more than one in 20 cases could be prevented by maintaining a healthy weight.