Altering mix of gut microbes prevents obesity, but diet remains key factor

The mix of microbes living inside the gut can protect against obesity, but a healthy diet is critical, according to School of Medicine scientists who transplanted intestinal microbes from obese and lean twins into mice and fed the animals different diets. Pictured are researchers Vanessa Ridaura, a graduate student, and Jeffrey I. Gordon, MD, director of the Center for Genome Sciences and Systems Biology.

Study shows way to test health claims of probiotics

Washington University scientists have demonstrated a rigorous way to test the effects of probiotic bacteria on digestive health: they zeroed in on the community of microbes that naturally live in the intestine and help to digest foods our bodies can’t on their own.