| ASPEN | American Society for Parenteral and Enteral Nutrition |
| BE | Barrett’s esophagus |
| BIA | Bioelectrical impedance analysis |
| BMI | Body mass index |
| BSPGHAN | British Society of Paediatric Gastroenterology, Hepatology and Nutrition |
| CT | Computed tomography |
| DXA | Dual-energy X-ray absorptiometry |
| EoE | Eosinophilic esophagitis |
| EOS | Eosinophils |
| ESPEN | European Society for Nutrition and Metabolism (ESPEN) |
| ESSD | European Society for Swallowing Disorders |
| FED | Food elimination diet |
| GER | Gastroesophageal reflux |
| GERD | Gastroesophageal reflux disease |
| GI | Gastrointestinal |
| HPF | High-power field |
| HRM | High-resolution manometry |
| HRQoL | Health-related quality of life |
| IGF-1 | Insulin-like growth factor |
| IGFBP3 | Insulin-like growth binding protein 3 |
| INS-R | Insulin resistance |
| IRP | Integrated relaxation pressure |
| JF | Jejunostomy feeding |
| LES | Lower esophageal sphincter |
| MG | Milligrams |
| ML | Milliliters |
| NETF | Nasoenteral tube feeding |
| OD | Oropharyngeal dysphagia |
| PPIs | Proton pump inhibitors |
| RYGB | Roux-en-Y gastric bypass |
| UHT | Ultra-High-Temperature |
| WHO | World Health Organization |
| WSP | Wedge-shaped pillow |