| Abbreviation | Full term |
| AGA | American Gastroenterological Association |
| ASGE | American Society of Gastrointestinal Endoscopy |
| BMI | Body mass index |
| CD | Crohn’s disease |
| CRP | C-reactive protein |
| CTE | Computed tomography enterography |
| EBT | Endoscopic bariatric therapy |
| ESG | Endoscopic sleeve gastroplasty |
| ESGE | European Society of Gastrointestinal Endoscopy |
| ESPEN | European Society for Clinical Nutrition and Metabolism |
| EWL | Excess weight loss |
| GLP-1 RA | Glucagon-like peptide-1 receptor agonist |
| IBD | Inflammatory bowel disease |
| IGB | Intragastric balloon |
| MRE | Magnetic resonance enterography |
| NF-κB | Nuclear factor kappa-light-chain-enhancer of activated B cells |
| NSAIDs | Nonsteroidal anti-inflammatory drugs |
| POSE | Primary obesity surgery endoluminal |
| PPI | Proton pump inhibitor |
| QoL | Quality of life |
| RYGB | Roux-en-Y gastric bypass |
| SG | Sleeve gastrectomy |
| TBWL | Total body weight loss |
| TNF-α | Tumour necrosis factor-alpha |
| UC | Ulcerative colitis |
| UEG | United European Gastroenterology |