Dietary fiber has the benefits of promoting gastrointestinal motility, helping digestion, relieving constipation, and aiding weight loss. 1. Promote gastrointestinal motility: dietary fiber contains more crude fiber, which is conducive to promoting gastrointestinal motility. 2. Help digestion: dietary fiber can be classified as long-chain polysaccharides, which can stimulate the secretion of digestive juices and help digestion and absorption. 3. Relieve constipation: appropriate intake of dietary fiber can increase the volume of feces, promote the discharge of feces, which in turn has the effect of relieving constipation. 4. Auxiliary weight loss: intake of sufficient dietary fiber can reduce the intake of other energy, mostly because dietary fiber can extend the chewing time, increase satiety, and then reduce the intake of other foods, so for weight loss can play a supporting role. Although dietary fiber is better, but in the intake of time should pay more attention to the amount of intake, pay attention to the balanced intake of other nutrients, and dietary fiber can not be used as a drug.