How does bariatric surgery promote weight loss?
Weight-loss operations work through various mechanisms, including restriction (creating a smaller stomach and the feeling of being full), malabsorption (reducing the calories absorbed), and hormonal changes (changing your metabolism and sense of satiety).

What are the benefits of weight-loss surgery?
A majority of patients lose weight quickly and continue to lose for 18 to 24 months after weight-loss surgery. Although most patients regain 5 to 10 percent of the weight they lost, many maintain a long-term weight loss of approximately 100 pounds or more.

Surgery improves most severe obesity-related conditions. For example, studies have shown that blood sugar levels of 83 percent of obese patients with diabetes returned to normal after surgery. Cases where patients’ blood sugar levels did not return to normal involved advanced age or long-term diabetes.

What is body mass index (BMI)?
Body mass index (BMI) is a measure of body weight relative to height. We use BMI to determine if you are at a healthy weight, overweight or obese. A body mass index (BMI) of 18.5 to 25 refers to a healthy weight, a BMI of 25 to 30 refers to overweight and a BMI of 30 or higher refers to obese. See our calculator to figure out your BMI.

How long do I stay in the hospital?
The average hospital stay for the gastric bypass or sleeve gastrectomy is one to two days, the Lap Band is one day, and duodenal switch is two days.

How long do I need to stay out of work?
We recommend that patients take time for their recovery. While we recommend that you take three weeks off from work, each patient works with their surgeon to determine the right amount of time. This varies from 2-4 weeks on average.

Do I need to take vitamins after surgery?
We recommend vitamin supplements for all of our patients. Each operation affects your absorption of vitamins in different ways. Our registered dietician works with each patient to help you find the best regimen.