The gut refers to the digestive tract, which includes the stomach, small and large intestines, and other organs involved in the digestion and absorption of food. It also includes the gut microbiota, which are the trillions of microorganisms that live in the gastrointestinal tract and play a crucial role in digestion, metabolism, and overall health. The gut is often referred to as the "second brain" because of its complex network of neurons that communicate with the brain and influence various bodily functions.
