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Biology and You

You and Food

What is dietary fiber?

Dietary fiber is a type of carbohydrate that cannot be broken down by digestive enzymes. Because of this, the fiber passes through the digestive tract more quickly, aiding in elimination. The term “dietary fiber” includes the cellulose found in plant cell walls and the chitin that makes up the support tissues of fungi (mushrooms), crustaceans, and insects.



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