Fibre
Dietary fibre consists mainly of cellulose that is indigestible because we do not have enzymes to digest it.Fruits and vegetables are rich in dietary fibre.
Importance of dietary fibre:
- provides bulk to the intestinal contents
- stimulates peristalsis(rhytmic muscular contractions passing along the digestive tract)
lack of dietary fibre in the diet leads to constipation (failure to pass motions)