 Turosobacter bacteria are important members of the gut microbiome, and can influence host-fat metabolism by modifying bile acids. These bacteria have been found to be associated with altered diets and body weight, but the exact mechanisms behind this relationship remain unclear. In this study, researchers examined the effects of different turosobacter strains on host bile acid production and lipid metabolism. They found that certain strains were able to produce unique bile acids, which could potentially explain why some turosobacter strains are linked to obesity. Additionally, when these strains were introduced into mice, they were shown to reduce levels of cholesterol and triglycerides, suggesting that turosobacter may play a role in regulating fat metabolism. This article was authored by Jonathan B. Lynch, Erika L. Gonzalez, Kaley Choi and others.