What is gut health, and why does it matter? Up until a few decades ago, no one would’ve guessed that the “gut” — the collection of organs and structures that make up the digestive system, and the trillions of bacteria housed within — played such an important role in non-digestive processes.  Among other things, an unhealthy gut can affect metabolism and immunity, all the way to supporting mental health and warding off chronic disease. To say that the gut is...