| ADHD | Attention-deficit/hyperactivity disorder |
| ASD | Autism spectrum disorder |
| US | United States |
| MedDiet | Mediterranean diet |
| PUFA | Poly-unsaturated fatty acid |
| EPA | Eicosapentaenoic acid |
| DHA | Docosahexaenoic acid |
| RCT | Randomised controlled trial |
| ARA | Arachidonic acid |
| SSB | Sugar-sweetened beverage |
| AFC | Artificial food colouring |
| CVD | Cardiovascular disease |
| EVOO | Extra-virgin olive oil |
| DASH | Dietary Approaches to Stop Hypertension |
| SCFA | Short chain fatty acid |
| F/B | Firmicutes to Bacteroidetes ratio |
| FODMAPS | Fermentable oligo-, di-, and monosaccharides and polyols |