Expected Weight Loss

The amount and rate of weight loss following surgery depends on several factors including initial weight, adherence to post-operative diet and amount of exercise.

Generally gastric bypass patients can lose at least 60 to 70 percent of their extra weight, most of it in the first six months following surgery. Many patients eventually lose up to 90 percent of excess weight.

Lap Band patients generally can lose about 50 percent of excess weight within the first year after surgery.