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Fiber is a complex carbohydrate that consists of cellulose, pectin, gum, mucilage, hemicellulose, and lignin. You don't completely digest and absorb fiber, because you don't have the enzymes required to disassemble it. For that reason, fiber accounts for less than the four Calories per gram of other carbohydrates.

The main function of fiber is to keep the digestive system healthy and functioning properly. Fiber aids and speeds up the excretion of waste and toxins from the body, preventing them from sitting in the intestine or bowel for too long, which could cause a build-up and lead to several diseases.

Fiber passes through the body virtually unchanged along with other digested food until it arrives at the large intestine. What happens next depends on which type of fiber is present.

Fiber keeps you from getting constipated.

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12y ago

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