The cost of gastric bypass surgery and other bariatric preoperative procedures are high averaging between $20,000 and $35,000. galore insurance companies are beginning to see obesity as a earnest health disorder, however, and have begun to cover some of the cost of gastric bypass surgery. Insurance companies will single cover the cost of gastric bypass surgery if the candidate is qualified. A conditional candidate is firstly at least 100 pounds overweight and has demonstrated in the past a serious effort to control their weight through lifestyle changes like-minded diet and exercise. Candidates must have been obese for at least 5 years antecedent to the surgery, not have a history of alcohol abuse, and not have depression or other serious psychiatric disorders. aft surgery, there are other things to consider when factoring in the cost of gastric bypass surgery. A new lifestyle commitment will include a membership to the gym, a wholesome choice diet, a wardrobe that may have to be replaced on a continual basis for a year, even transportation and furniture. Beyond the material cost, there is also a physical and cathartic cost. Gastric bypass surgery permanently changes your digestive system making it impossible to eat certain foods or combinations of foods. You will also have to make a commitment to exercise regularly and avoid high-sugar and high-fat foods that may hurt your system. Emotionally, an adjustment will have to be made as you adapt to your new lifestyle and continually changing body. People important to you may also treat you differently aft weight loss, which can cause stress and conflict. some surgery is serious and a surgery to promote weight loss should only be undertaken when all other avenues have been explored.