Which of the following are substances in plant foods that are not absorbed by the body?

starch

disaccharides

dietary fiber

simple sugars

Answer: dietary fiber

Explanation:

The dietary fibers can be defined as those nutrients in the diet which cannot be digested by the gastrointestinal enzymes and the minerals from them are not absorbed by the body. These keep the bowel full after food intake for long. These prevent disease like diabetes as reduces the need for consumption of more food, heart disease and constipation. The fruits, vegetable, legumes, fibers are the sources of dietary fibers.