They can even help your digestion and the regularity of your bowel movements.
The simple act of extra chewing will help create additional saliva which can aid in digestion.
digestion is a technical term which relates the mechanical, enzymatic, and chemical degradation of food.
digestion di·ges·tion (dī-jěs'chən, dĭ-)
The process by which food is converted into substances that can be absorbed and assimilated by the body, especially that accomplished in the alimentary canal by the mechanical and enzymatic breakdown of foods into simpler chemical compounds.