In the U.S., endometrial cancer is the most common cancer of the female reproductive organ. It is a type of cancer that starts in the endometrium, which is located on inner lining of the uterus. It may sometimes be referred to as uterine cancer. The uterus is the female pelvic organ where a fetus grows when a woman is carrying a child. Now, a new study published in the journal Cancer Epidemiology, Biomarkers & Prevention investigates the effects of diet and the risk of this prominent cancer in women. They found that 3-4 cups of coffee daily reduced the risk of endometrial cancer by up to 19%.