The substance that helps move food through the digestive tract is fiber, a carbohydrate that aids in peristalsis and provides bulk in the digestive system.
Fiber is a carbohydrate that travels through the digestive tract but is not digested or absorbed. It provides bulk for the muscles of the digestive tract to speed up the passage of food, aiding in peristalsis.
https://brainly.com/question/40473254