Gut Bacteria Affect Obesity and Leanness

Keep your fat germs away from me!

Keep your fat germs away from me!

From a Gina Kolata article at The New York Times:

The evidence is from a novel experiment involving mice and humans that is part of a growing fascination with gut bacteria and their role in health and diseases like irritable bowel syndrome and Crohn’s disease. In this case, the focus was on obesity. Researchers found pairs of human twins in which one was obese and the other lean. They transferred gut bacteria from these twins into mice and watched what happened. The mice with bacteria from fat twins grew fat; those that got bacteria from lean twins stayed lean.

Here’s the experiment write-up.

These findings may lead the way to new obesity treatments.

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