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Gut bacteria may be key to weight loss

Normally we shudder when we think of bacteria, but a new study reveals that some of these microorganisms may be able to help us lose weight.

The study, published in the March 27 issue of Science Translational Medicine, showed that bacteria in the guts of mice changed after they had gastric bypass surgery, a procedure in which surgeons divide a person's stomach and connect the small intestine directly to the smaller walnut-sized portion. When these different microbes were transplanted in sterile mice who did not have the surgery, those animals lost weight quickly.
 
 

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