Weight loss after bariatric surgery varies from person to person. Typically, you'll lose weight quickly after the first few months and then the pounds will come off more slowly. It usually takes about 12 to 18 months to achieve maximum weight loss, the typical amount being 60 to 70 percent of excess body weight. The amount you lose will vary based on your dietary and daily exercise habits.
You can expect some or all of your obesity-related medical problems to improve as you lose weight. Some patients are even able to discontinue their medications for diabetes and high blood pressure shortly after surgery.