The success of weight loss surgery is defined by the loss of excess weight—that is, not how much total weight you lose, but rather the difference between your current weight and your ideal weight. If you can achieve and continuously maintain a weight loss of 50 percent of your excess weight, than a weigh-loss surgery is deemed successful. And in those terms, surgeries have a success rate of more than 90 percent a year with an average over five years between 55 and 70 percent.
Other statistics regarding the effective of weight loss surgery can be more startling. For example, research has found that losing 20 pounds corresponds to a 53-percent reduction in obesity-related deaths, and most bariatric surgeries are designed to help people lose five times that much weight. Further, weight loss surgery reduces diabetes-related deaths by 80 percent—and some procedures can even cure diabetes in over 90 percent of the cases.
Find out more about this book:You, on a Diet: The Owner's Manual for Waist Management