Swallowing a tiny capsule could offer a full view of your GI tract and gut bacteria. The tiny tool could even scoop up bacteria and deliver them to doctors.

"Until now, we didn't appreciate how different environmental risk factors can synergize to drive the disease."

A tried-and-true equation is helping researchers make a model of the gut microbiome. That could pave the way for one day tweaking it to boost health.

A fecal transplant of viruses shows promise in mice for treating obesity and type 2 diabetes, report researchers.

Even when mixed with formula, just small amounts of breast milk strongly influence the accumulation of viral populations in a baby's gut, researchers say.

The gut microbiomes of apes living in captivity resemble those of some people more than they resemble apes living in the wild.

Feeding babies solid food too early may change their gut bacteria in ways that can lead to health risks later.

Researchers have discovered a previously unknown response to the metabolite indole, which seems to both repel and attract bacteria.

New research finds depleted bacteria in the intestines of people with ulcerative colitis. The finding suggests supplements could ease the condition.