It's estimated that up to twenty percent of cancer deaths are related to excess weight.
So now, the American Cancer Society is updating its cancer prevention guidelines. At the top of the list, maintaining a healthy weight and that advice comes with three recommendations.
First, the ACS says those who are able should rev up their fitness level to include more than just a walk about the park.
"That can have positive effects on the physical function as well on cognitive function," said Dr. Harvey Cohen, of Duke University Medical Center.
Also on the list, a push for more fruits and vegetables and fewer fries and finally, a strong reminder to limit alcohol consumption to just one glass a day for women and two for men.
The cancer society report notes that weight gain, lack of physical activity and alcohol have all been linked as risk factors for a number of cancers, including breast and colon.