(1) Fruits, vegetables, whole grains and legumes give rich amount of dietary fibre.
(2) Fibres help to relieve constipation and help in maintaining a healthy weight and lowering risk of diabetes, heart disease and some types of cancer.
(3) No, fibres are not digested in the body but are passed on without any alteration.
(4) Fibres pass through stomach, small intestine and colon.
(5) Roughage is the fibre content of the food which consists of plant matter which cannot be digested by the human enzymes, hence form undigested bulk matter in the faeces.