Sweet potato is rich in a very special starch, which can effectively resist the digestion of digestive enzymes and make food stay in people's stomachs for a long time, thus effectively prolonging satiety. So that people will not consume too many calories, and have a very good appetite suppression effect. If you eat sweet potatoes, it is best to eat boiled sweet potatoes, which can effectively stimulate intestinal peristalsis and prevent constipation. It should be noted that never eat sweet potatoes with dark spots, which may have deteriorated, and never eat sprouted sweet potatoes, otherwise it may lead to poisoning.