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Dietary fiber is a type of indigestible carbohydrate that is present in plant foods. It is also known as bulk or roughage. Unlike other nutrients such as carbohydrates, proteins, fats, vitamins and minerals, fibers are not broken down or absorbed by the body. It passes through the stomach and the large intestine undigested and expelled out. The two major types of dietary fiber include soluble fiber and insoluble fiber.
