Definition
Motilin is a hormone produced in the small intestine. It primarily regulates gastrointestinal motility, which refers to the movement of food through the digestive tract. It stimulates muscle contractions that help move food along. Think of motilin as the digestive system's traffic controller. It ensures that food keeps moving through your intestines. Motilin also helps clear out the small intestine between meals. Irregular motilin activity can lead to digestive problems.