| AI | Artificial intelligence |
| ALB | Serum albumin |
| AMY1 | Amylase 1 |
| ASPEN | American Society for Parenteral and Enteral Nutrition |
| BPI | Bacterial permeability-increasing protein |
| CD14 | CD14 molecule |
| DNA | Deoxyribonucleic acid |
| EE | Energy expenditure |
| EN | Enteral nutrition |
| ESPEN | The European Society for Enteral and Parenteral Nutrition |
| IC | Indirect calorimetry |
| ICUAW | ICU-acquired weakness |
| ICUs | Intensive care units |
| IGF1 | Insulin-like growth factor 1 |
| IL6 | Interleukin 6 |
| IL10 | Interleukin 10 |
| LCT | Lactase |
| LBP | Lipopolysaccharide-binding protein |
| LTA | Lymphotoxin alpha |
| ML | Machine learning |
| MBL | Mannose-binding lectin |
| PAI1 | Plasminogen activator inhibitor 1 |
| PN | Parenteral nutrition |
| REE | Resting EE |
| RNA | Ribonucleic acid |
| SNPs | Single nucleotide polymorphisms |
| TLR4 | Toll-like receptor 4 |
| TNF | Tumor necrosis factor |