Are roughages essential for our body If yes,then why - Biology - Health and Hygiene

Question

Are roughages essential for our body?If yes,then why?

Mushtaq Ahmed · Accepted Answer

Roughage are fibres which are taken along with food for a
healthy diet
Roughage forms 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