Your body's digestive system (also called your gastrointestinal system or GI tract) plays a key role in your overall health and well-being. It's made up of a series of organs that help your body break down and absorb food. GI problems are very common. In fact, the National Institutes of Health estimates that 60 to 70 million people are affected. Our links, latest news and FAQs will help you better understand your digestive health.