Your digestive system is a group of connected organs that work together to turn the food you eat into nutrients your body needs to function. It includes your biliary system—your gallbladder ...

also called digestive fluid, through your system as it is needed for digestion. Bile is a yellow-green fluid that has two functions. The first is to break down fats when food is digested.

Everyone experiences occasional digestive symptoms such ... that populate your gastrointestinal system. Your gut microbiome is essential to functions related to digestion, immunity, and hormonal ...

This article also explains the functions of other parts of the digestive system. The mouth is the beginning of the gastrointestinal (GI) tract. A person’s GI tract comprises hollow organs that ...