what does the indigestible material in food is known as ?
Roughage.
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/what-is-roughage/our-food/2823249
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/what-is-roughage/our-food/2823249