Dear Doctors: I’ve been having a lot of bloating and intestinal gas. A friend says this can mean that you have too much bacteria in your small intestines. How does that happen, and how do you fix it?

The large intestine—which includes the cecum, colon, rectum, and anus—is a key part of the digestive system. It's a long, thin organ at the end of your digestive tract where your body produces and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Christopher Damman, University of Washington (THE CONVERSATION) Microbiome research to ...

Americans are drinking less than they have in decades. But a new study on mice shows even one bottomless brunch may shrink the small intestine’s nutrient-absorbing surface and spark inflammation that ...

The terms "intestinal barrier" and "intestinal permeability" describe two different aspects of the same anatomical structure, the intestinal wall composed of four layers, the mucosa, the submucosa, ...

Increased meat in ancient hominin diets, beginning about 3 million years ago, meant that guts (large and small intestines) could become shorter because they could extract more expeditious calories in ...