We have known for a while that obesity has a microbial component. Now, a team of scientists led by Patrice D. Cani reports a novel bacterium isolated from the human gut that counteracts diet-induced obesity, inflammation and glucose dysregulation in mice.

What is the gut-brain connection? How do the gut and the brain ‘talk’ to each other? What is the role of gut bacteria? This interview with Prof. John Cryan answers these questions.

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