There are several types of bariatric operations, but none work without a substantial degree of knowledge and effort on your part and the help and guidance of an expert team. Help and guidance after surgery is key to both losing weight and keeping the weight off in a healthy way.
The most important concept for patients to remember is that these operations only help you comply with your diet. They don't replace the need to actively work at managing the amount and type of food you eat. Bariatric surgery may help with reducing the perception of hunger, an issue few diets and exercise programs address and why they often fail.
Diets often fail because it's impossible to function or perform properly in a perceived caloric deficit. A complex symphony between the brain, fat cells, muscle fibers, and the gastrointestinal tract regulates hunger and energy expenditure. This is where bariatric surgery helps beyond medical therapy, diet, and exercise. Success depends on the individual, and each individual has a different goal. Bariatric surgery is only a tool for weight loss. Weight loss is important, but the results from weight loss are really important.
The whole purpose is to live longer and better.