Possible candidates for this operation are those with a body mass index (BMI) greater than 40, or more than 40 kilos overweight. It is also ideal for those with a BMI over 35, but associated with a disease like high blood pressure and diabetes, among others.

Another requirement is to have between 18 and 60 years (although it is an ideal technique for some adolescents in selected cases). Must not have psychiatric illness and have no addiction to alcohol or drugs.

For those thinking about this solution with an aesthetic purpose, they should know that the surgery is only done for medical reasons, since its purpose is to remove the patient from a range of severe and morbid obesity, which results in poor quality life (and threatening). Not to mention that is also associated with a number of metabolic diseases, which can be cured after this procedure. For example, an obese diabetic it solves the problem of overweight and ends with his diabetes stop taking medications or insulin. The same goes for high blood pressure and sleep apnea, which improved by 90 and 80% respectively.