Strong Obesity and Cancer Link Now Absolutely Confirmed Excess weight can now officially be added to the growing number of factors that contribute to cancer according to the UK's Million Women Study. The study, which included more than 1 million UK women, found that 5 percent of all cancers in the UK -- or about 6,000 cases each year -- are caused by being overweight or obese. The team found that increasing body mass index (BMI, a standard for measuring your weight to height ratio) was associated with a significant increase in the risk of cancer for 10 of the 17 cancer types they examined. Excess weight, they found, contributes to cancers of the:
For the Million Women Study, overweight was defined as having a body mass index between 25 and 29.9, while obesity was defined as a BMI of 30 or more. Obesity Rivals Smoking as a Major Cancer Causer A separate study released shortly prior to the Million Women Study further confirmed the link between obesity and cancer. The 500-page report, "Food, Nutrition, Physical Activity, and the Prevention of Cancer: a Global Perspective" -- put together by the American Institute for Cancer Research and the World Cancer Research Fund -- analyzed more than 7,000 clinical trials. It found that obesity now causes nearly as many cases of cancer as smoking, and may one day surpass it. "This is the first report that clearly shows that the fatter we are, the greater the risk of cancer. It's remarkable how clear that link is," said report co-author Dr. W. Philip James in a CBS News article. And Dr. Emily Senay, an Early Show medical correspondent, called the report "eye-opening," and stressed that it "is clearer than ever. Even small amounts of excess body fat, especially around the middle, can make cancer more likely." While the new reports serve to strengthen the obesity/cancer link, their findings are not new. A study published in the New England Journal of Medicine back in 2003 also found that being overweight and obese can cause cancer. According to these findings, overweight and obesity may account for 20 percent of all cancer deaths among U.S. women, and 14 percent of those among men. In all, the study found that 90,000 cancer deaths could be prevented every year if Americans maintained healthy body weights. How to Maintain Your Ideal Weight According to a 2002 American Cancer Society survey, just 1 percent of Americans associated maintaining a healthy weight with reducing their cancer risk. But now that the evidence is out, there is even more motivation to lose any excess pounds you may be holding on to. So how do you shed those pounds, or avoid gaining them, when you live in an obesogenic environment that tempts you with cheap junk food and often keeps you chained to your desk for much of the day? Here are the top tips.
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