How much do you think about your gut? Are you taking a probiotic or prebiotic? If so, you’re not alone as globally we spend billions of dollars on soothing our stomachs. Our guts do so much more than just digest our food and there’s a very special connection to our brain. So how exactly does our gut work? And what do we need to do in order to keep it healthy? Presenter: Tanya Beckett Producer: Louise Clarke Researcher: Matt Toulson Sound engineer: Nicky Edwards Contributors: Geoff Preidis, a gastroenterologist at Baylor college of medicine at Texas children’s hospital in Houston Dr Jane Foster, Professor of Depression Research and Clinical Care at UT Southwestern Medical Center Martin Ham, Business Development Manager, NIZO Dr. Gail Hecht is Professor of Medicine and Microbiology/Immunology, and Gastroenterology and Nutrition (Photo: Man bites in to cheeseburger. Credit: Emanuele Cremaschi/Getty Images)