More and more evidence suggests that being overweight raises the risk for recurrence and reduces the odds of survival for many cancers. Increased body weight has been linked with higher death rates for all cancers combined. It has also been linked with increased risk for cancers in certain sites:
Esophagus (swallowing tube from mouth to stomach)
Colon and rectum
Cancers of the stomach and prostate in men
Cancers of the breast, uterus, cervix, and ovary in women
Because of other proven health benefits to losing weight, people who are overweight are encouraged to get to and stay at a healthy weight. Avoiding weight gain is important, not only to reduce cancer risk and risk of cancer coming back, but the risk of other chronic diseases as well.