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Dietary fiber
Portion of plant-derived food that cannot be completely digestedFoods rich in fibers: fruits, vegetables and grainsWheatbran is rich in dietary fiber.Dietary fiber (also spelled fibre), or roughage, is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes. Dietary fibers are diverse in chemical composition and can be grouped generally by their solubility, viscosity and fermentability, which affect how fibers are processed in the body.
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