Weight gain over a number of years raises risk of cancer by up to 50%

Piling on the pounds over several decades increases the risk of obesity-related cancers by 50% in men and by 20% in women, research has shown.

British scientists looked at the link between obesity and cancer in 300,000 Americans, who were monitored between the ages of 18 and 65.

During that time, some people gained little weight, while others became “morbidly” obese — meaning they were so fat it endangered their health.