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Obesity, cancer and bacteria in the gut: Scientists explore link
Los Angeles Times

It’s well known that obesity is linked to diabetes, heart troubles and other health woes, but studies have also linked carrying too much weight to an increased risk of some kinds of cancer, including esophageal, colorectal, pancreatic and other cancers. Now researchers may have figured out why being overweight is linked to a person’s chances of developing liver cancer: obesity seems to cause key changes in microbes that live in the gut, stimulating bacteria there to secrete chemicals that damage DNA and lead to the development of tumors.

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