Dietary fibre refers to the indigestible fibrous materials in our diets.
Role of Dietary Fibre in our Diets
Dietary fibre refers to the indigestible fibrous materials in our diets. A good example of this is the cellulose that is present in plants. These fibrous materials are important because it provides bulk to the intestinal contents and helps peristalsis.
Peristalsis is a series of wavelike, muscular movements of the walls of the digestive tract. Such movements enable food to be mixed with the digestive juices and at the same time
move along the digestive canal. This seems like a smooth process, so you may wonder how
constipation occurs?
Constipation can occur if proper peristaltic movements do not occur, the undigested matter in
the large intestine cannot be moved along fast enough and too much water will be absorbed.
As a result the faeces becomes dry and hard and their removal through excretion becomes
difficult.
This condition is called constipation. This can be prevented by taking enough fibre
and consuming sufficient water. Fresh fruits and vegetables, bran, cereals, whole wheat
flatbread and breads are good sources of fibres.
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Timestamp:
00:00 What is dietary fibre?
00:13 Example of dietary fibre
00:17 Role of dietary fibre in digestive system
00:37 How does constipation happen?
01:01 How to prevent constipation?
3 авг 2024
