Post-menopausal women can reduce their risk for reducing endometrial cancer by losing extra weight.
Researchers looked at data from more than 35,000 women.
The protective effect was greatest among obese women who actively worked to lose weight.
Shedding at least 5-percent of their body weight translated into a 56-percent reduction in endometrial cancer risk.
More than three-quarters of endometrial cancer cases occur in women over the age of 55.
