Have a Body Mass Index (BMI) of 40 or greater or, between 35 and 40, with diseases associated with obesity.
Be between 18 and 65 years old.
Do not suffer from any psycho-emotional or medical problem that could unnecessarily increase the risk of surgery.
You must not be addicted to drugs and / or alcohol, or be discharged from a treatment program with less than one year of abstinence.
Acquire personal commitment to follow medical, nutritional, exercise, and laboratory indications.