It is the least invasive and safest weight loss operation available at this time. Under x-ray the band can be adjusted just right for each patient, and be monitored at the same time.
The pouch or new stomach is separated, and the duodenum and remaining stomach is bypassed. Overnight, the anatomical changes alone, have an impact on diabetes.
Weight loss is similar to that seen with the bypass. It is also effective against diabetes. Its simplicity is attractive to both surgeon and patient.