What is the gastrointestinal system?

The gastrointestinal system is another term for the human digestive system. Its function is to digest food, absorb nutrients, and eliminate waste from the body. This is done through a series of organs which work together for optimal health. Gastrointestinal problems can lead to a variety of seemingly unrelated problems in the body, including bad breath, fatigue, skin problems, headaches and hypertension. Therefore, it is crucial for the gastrointestinal tract to remain healthy.