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[DIGEST: Scientific American, The Guardian, Newsweek]

With doctors around the country searching for treatment options for the more than one-third of Americans categorized as obese, new research suggests the answer might be hidden inside our bodies: the microbes living in our digestive systems. Bacterial cells outnumber human cells ten to one, with the largest and most diverse populations living in our mouths and large intestines.  Numerous studies have investigated the link between obesity and the diversity of bacteria residing in the gut, and while the research is still in early stages, scientists have been intrigued by their findings.

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