what is the importance of roughage

Roughage or dietary Fiber is the indigestible portion of plant foods.They do not provide any nutrient to our body. However, they form an important component of our food because of the following reasons:

They help prevent constipation by increasing the volume of stool in our body. Therefore, people who include a lot of dietary fibres in their diet suffer from fewer problems of constipation.

They help in retaining water in the body.

They help in getting rid of undigested food.