| Restrictive |
| Vertical banded gastroplasty |
| Laparoscopic adjustable gastric band |
| Sleeve gastrectomy |
| Malabsorptive |
| Jejunoileal bypass |
| Biliopancreatic diversion |
| Biliopancreatic diversion with duodenal switch |
| Combination of restrictive and malabsorptive |
| Roux-en-Y gastric bypass |
