Among the trillions of microbes that live in the gut, one obscure bacterium has suddenly become a star of obesity research.

January often brings a sense of reset, along with goals of building muscle and losing fat – also known as body recomposition ...

Weight fluctuation happens daily, week to week, or month to month. Learn about causes and when to see a healthcare provider about weight changes.

Explore the truth behind the myth that fat turns into muscle. Learn how to effectively lose fat and gain muscle ...

In another, perhaps counterintuitive study, mice that had all their gut bacteria wiped out were protected from gaining as ...