Every diet includes products with dietary fiber. These fibers cannot be digested by gastrointestinal enzymes and can’t absorbed by the body. What is the role of dietary fiber?

Answer options

1. Inhibits secretion of enzymes in digestive juices
2. Stimulates motor function of alimentary tract
3. Inhibits absorptive function of alimentary tract
4. Inhibits motor function of alimentary
5. Inhibits secretory function of alimentary tract