What type of saccharide is fiber?

Fiber is classified as a polysaccharide. Polysaccharides are long chains of monosaccharide units linked together, and they are not easily digested by the human body. This indigestibility is a key characteristic that defines fiber.

Fiber can include various types such as cellulose, hemicellulose, and pectin, all of which contribute to digestive health by adding bulk to the stool and promoting regular bowel movements. Unlike monosaccharides, which consist of single sugar units, or disaccharides, made up of two sugar units, fiber’s structure allows it to serve vital functions in nutrition that go beyond simply providing energy.

Choosing polysaccharide as the answer reflects an understanding of the different carbohydrates and their physiological roles, particularly recognizing that fiber's unique structure influences how it interacts with our digestive system and overall health.