WW hile many methods for treating obesity have been tested and tried through the years, only one—gastric bypass—has proven successful in a high percentage of patients. In fact, gastric bypass is now considered the standard of care for treating obese patients. Considering these statistics, that is no surprise: the success rate for gastric bypass surgery exceeds 90%, with most patients able to lose more than 40% of their excess weight and maintain that weight loss for more than five years. Mortality and morbidity also are low, with less than 1% of patients failing to survive the procedure or the challenging weeks that follow and fewer than 10% reporting poor health following surgery.