| 5-HT | 5-hydroxytryptamine |
| AH | Arterial Hypertension |
| BDNF | Brain Neurotrophic Factor |
| BMI | Body Mass Index |
| CGRP | Calcitonin Gene-Related Peptide |
| CKD | Chronic Kidney Disease |
| CNCDs | Chronic Non-Communicable Diseases |
| CNS | Central Nervous System |
| CV | Cardiovascular |
| DAO | Diaminossidase |
| DM | Dibetes Mellitus |
| ED | Endothelial Dysfunction |
| EPA | Aicosapentaenoic Acid |
| EVOO | Extra Virgin Olive Oil |
| FOSs | Fructooligosaccharides |
| GI | Gastrointestinal |
| GOSs | Galactogosharides |
| HPA | Hypothalamic–Pituitary–Adrenal |
| H3R | Histamine H3 Receptor Agonist |
| IAA | Indole 3 Acetic Acid |
| IL | Interleukin |
| IS | Indoxyl Sulphate |
| KD | Ketogenic Diet |
| MD | Mediteranean Diet |
| MUFAs | Monounsaturated Fatty Acids |
| NF-κB | Kappa-B Nuclear Factor |
| NMDA | N-Methyl-D-Aspartic Acid |
| NO | Nitric Oxide |
| NSAIDs | Nonsteroidal Anti-Inflammatory Drugs |
| OS | Oxidative Stress |
| p-CS | P-Cresyl Sulfate |
| PUFAs | Polyunsaturated Fatty Acids |
| RAAS | Renin–Angiotensin–Aldosterone System |
| RDA | Recommended Dietary Allowance |
| SCFAs | Short Chain Fatty Acids |
| TMAO | Trimethylamine N-Oxide |
| TNF | Tumor Necrosis Factor |
| WHO | World Health Organization |