Bariatric surgery is usually the last resort for obese people who wish to make a lifestyle change. While there are many risks and side effects, most people undergoing this type of surgery realize weight loss and health benefits that make weight loss surgery an excellent option for many.
Weight loss after bariatric surgery varies and depends on numerous factors. Younger people in good overall health will be more successful than older individuals with weight-related health issues. Pre-operative body mass index (BMI- a measure of weight relative to height) is also important. People with overall lower BMIs will lose more weight and are more likely to reach their ideal weight than individuals with higher BMIs. The type of gastric surgery will also dictate weight loss. Other aspects that are important include the willingness and ability to initiate an exercise program and a commitment to following dietary restrictions (which can be extremely rigorous) after surgery. A strong support network can also increase the success of weight loss surgery.
Typically, people undergoing weight loss surgery can expect to lose about 60 percent (and sometimes up to 80 percent) of their excess weight within the first year, half of that within the first six months. In fact, weight loss after surgery is usually highest for the first twelve months and can be as high as two to three pounds weekly. After eighteen months or so, this weight loss will start to taper off and many patients may even notice a slight weight gain. However, over ten years most people keep at least half their excess weight off.
Patients who undergo weight loss surgery will generally have greater control over or eliminate completely many weight-related health issues such as Type II diabetes, high blood pressure, sleep apnea and back pain. These health-related benefits are directly related to the weight loss and when considered in conjunction with looking and feeling better all make bariatric surgery an attractive option when all other weigh loss strategies have failed.