Health Questions and Answers

Question: What is Fiber?

Answer:

Fiber is material from plant cell walls that is resistant to digestion by enzymes of the human small intestine. Fiber is often classified according to its solubility in water. Water-soluble fibers (pectin, gums, mucilages, and some hemicelluloses) tend to be efficiently broken down by bacteria in the colon. Water-insoluble fibers (lignin, cellulose, and the remaining hemicelluloses) pass through the body mostly unchanged. Dietary fiber is a complex mixture of both.

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