Many fat people learn about weight loss surgery after their hearts are broken by the constant rebound of traditional weight loss methods. How does weight loss surgery work? Will it rebound? In fact, most fat people who have learned about weight loss surgery know that the advantage of weight loss surgery over traditional weight loss methods is effective long-term weight loss. The results of the surgery speak for themselves. Clinical experience shows that weight loss surgery can lose an average of 60%-80% of the body’s excess weight in a year, and as long as you follow medical advice, the chances of rebound are very small. And the safety of weight loss surgery is very high, even higher than the common cholecystectomy. And bariatric surgery can do what traditional weight loss methods cannot do – effectively treat a variety of obesity complicating metabolic diseases. Such good weight loss results and high surgical safety. So are there any after-effects of weight loss surgery? Gastric bypass surgery, one of the two currently mainstream procedures for weight loss surgery, can have a small amount of vitamin deficiency after surgery. The reconstruction of the digestive tract reduces the absorption of vitamins and minerals, and in order to prevent the resulting deficiency of the relevant nutrients, it is necessary to take multivitamin tablets for supplementation. In fact, compared to the obesity and complications experienced before surgery, it is very cost effective to maintain a good weight loss after surgery by just taking vitamins and following medical advice. Many fat friends lamented during the post-operative review that they did not learn about weight reduction surgery earlier. Blindly following a variety of weight loss methods in the early stages resulted in ineffective or rebounding results, costing money and manpower. Weight loss surgery should not be the last option after many failed weight loss attempts, and for patients with severe obesity, this one weight loss method should be considered at the very beginning of weight loss.