In a recently published
study from the University of Manchester in England, increased weight was linked
to increased risk for several common and rare cancers. For men, increased weight
was linked to an increase in cancer of the esophagus, and for women, the risks
increased for endometrial (the lining of the uterus) and gallbladder cancers.
The Manchester study is not the first study to link weight gain to an increase
in cancer risks. According to the National Cancer Institute, experts in 2001
concluded that cancers of the colon, breast (postmenopausal), endometrium,
kidney, and esophagus are associated with obesity and physical inactivity. Some
studies also have reported links between obesity and cancers of the ovaries and
pancreas. In 2002, about 41,000 new cases of cancer in the United States were
attributed to obesity.
Maintaining a healthy weight is an important key in reducing the risk of many
cancers, according to Douglas Metz, D.C., chief health services officer for
Healthyroads, Inc., the wellness subsidiary of personal health improvement
company American Specialty Health Incorporated (ASH).
"We recommend that people establish healthy eating and exercise habits early in
life to prevent excess weight gain," said Dr. Metz. "For those already
overweight, we suggest a low-calorie, balanced diet including plenty of fruits
and vegetables combined with exercise. Even losing five to 10 percent of your
total weight can provide health benefits."
"Every year, thousands of people are diagnosed with cancer that may be caused in
part by unhealthy behaviors," said Elizabeth Thompson, MPH, RD, clinical
director for Healthyroads, Inc. "Making healthy living choices may be a good
plan in reducing your risk of cancer."
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