Fecal microbiota transplantation is being studied in the context of metabolic health, beyond its use for recurrent Clostridioides difficile infection. A new proof-of-principle study reveals that supplementing low-fermentable fiber following fecal microbiota transplantation may improve insulin sensitivity in individuals with severe obesity.

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.

Gut microbiota alterations in obesity remain the subject of debate. Writing in Nature, Vieira-Silva and colleagues found that the undesirable Bacteroides 2 enterotype was more frequent in people with a higher body mass index, but not if they were taking statins.

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