Pineapple contains a substance called "pineapple prion enzyme", which can decompose protein, help digestion, dissolve fibrous protein and blood clot blocked in the tissue, improve local blood circulation, dilute blood lipids, eliminate inflammation and edema, and promote blood circulation. Especially after carnivorous kind and greasy food, eat some pineapple is more appropriate, can prevent fat deposition. Bromelain can effectively break down protein in food and increase gastrointestinal motility. This enzyme can decompose protein in the stomach, supplement the deficiency of digestive enzyme in the human body, so that the patient with indigestion can restore normal digestive function. The substance prevents gelatin from building up, which can be used to sour milk or soften other fruits, but this trait is attenuated in cooking. In addition, the sugar and enzyme contained in pineapple have a certain diuretic effect, beneficial to nephritis and hypertension, and also have auxiliary curative effect on bronchitis. Due to the role of cellulose, constipation treatment also has a certain effect. When there is indigestion, eat some pineapple can appetizer natural gas, greasy solution, can play a role in helping digestion, but also alleviate constipation. In addition, pineapple is rich in vitamin B1, which can boost metabolism and fight fatigue.