It is a restrictive surgical procedure that is performed by laparoscopic or minimally invasive surgery, we call it restrictive because we reduce the size of the stomach by approximately 70%; significantly decreasing the capacity of food ingestion. By removing more than half of the stomach, the patient will experience a feeling of fullness more quickly. Accompanied by an adequate diet, it is estimated that the patient loses around 80% of their excess weight during the following 12 to 18 months.