| AcAc | Acetoacetate |
| BHB | Beta-Hydroxybutyrate |
| BMI | Body Mass Index |
| CSD | Cortical Spreading Depression |
| DRI | Dietary Reference Intake |
| EFSA | European Food Safety Authority |
| ITT | Intention-to-Treat |
| KD | Ketogenic Diet |
| LMM | Linear Mixed Model |
| PSMF | Protein Sparing Modified Fast |
| VLCD | Very Low-Calorie Diet |
| VLCKD | Very Low-Calorie Ketogenic Diet |
| VLCnKD | Very Low-Calorie non-Ketogenic Diet |