Gastric reduction surgery is a type of weight loss surgery. The results of gastric reduction surgery are somewhere between gastric bypass and gastric banding. The full procedure takes only about one hour and is less invasive, quicker to recover and less risky. Gastric reduction surgery is performed by using a laparoscope to cut out the greater curvature of the stomach vertically to create a small stomach sac of about 150cc, which can hold about 4-5 ounces of food, thus reducing the amount of appetite hormones produced to reduce the patient’s appetite. At the same time change the flow of food, no longer through the lower part of the stomach and duodenum, by rerouting to change the body’s absorption of nutrients, so as to improve or cure obesity, in order to avoid obesity to bring more harm to their lives and health. By rerouting the upper part of the stomach and rearranging the position of the small intestine, the intake of food is reduced and the absorption of calories by the small intestine is reduced, thus achieving weight loss in a two-pronged way. At the same time, the medical community has found that the increased speed of food entering the intestines after surgery can help cure type 2 diabetes. The procedure is ideal for obese patients with type 2 diabetes. Although the safety of gastric reduction surgery is very high, there are certain things that should be noted. First of all, the patient’s eating habits may change significantly after surgery. If the patient eats too much or too fast, it may cause nausea and vomiting. Some patients may need a longer period of time to change their eating habits. The diet should be mainly liquid for 2 weeks after surgery, with soft meals for 2 to 4 weeks and then solid foods can be added gradually. Slight vomiting and flatulence are common. Half a sandwich and half a drink will make you feel full. It is important to understand that the progress varies from person to person. Please eat small and slow portions and separate food and drinks as much as possible when eating. In addition, about 1 in 5 people may have acid reflux after surgery and may require medication. A dietitian should provide long-term counseling for six months after surgery to avoid malnutrition. Bariatric surgery must be performed by experienced and skilled specialists and requires advanced and complete medical equipment in order to ensure the safety and effectiveness of the surgery.