| α-MSH | α-Melanocyte-stimulating hormone |
| Acaca/ACC | Acetyl-CoA carboxylase |
| ACC1 | Acetyl-CoA carboxylase 1 |
| ACOX1 | Acyl-CoA oxidase 1 |
| ACS | Acyl-CoA synthetase |
| ADHD | Attention deficit hyperactivity disorder |
| AgRP | Agouti-related peptide |
| AICAR | 5-Aminoimidazole-4-carboxamide ribonucleotide |
| AMPK | AMP-activated protein kinase |
| ATP | Adenosine triphosphate |
| BAIBA | β-Aminoisobutyric acid |
| BAs | Bile acids |
| BAT | Brown adipose tissue |
| BCAAs | Branched-chain amino acids |
| BD-AcAc2 | R,S-1,3-Butanediol diacetoacetate |
| BDNF | Brain-derived neurotrophic factor |
| BED | Binge-eating disorder |
| BMI | Body mass index |
| BMPs | Bone morphogenetic proteins |
| C/EBPs | CCAAT/enhancer-binding proteins |
| CART | Cocaine- and amphetamine-regulated transcript |
| CB1R/CB2R | Cannabinoid-1 receptor/cannabinoid-2 receptor |
| CCK | Cholecystokinin |
| CD36 | Cluster of differentiation 36 |
| CDCA | Chenodeoxycholic acid |
| ChREBP | Carbohydrate-responsive element-binding protein |
| CLA | Conjugated linoleic acid |
| CNS | Central nervous system |
| COVID-19 | Novel human coronavirus disease |
| Cox4i1 | Cytochrome C oxidase subunit 4 isoform 1 |
| CPT1 | Carnitine palmitoyltransferase 1 |
| CPT1b | Carnitine palmitoyltransferase 1b |
| CRH | Corticotropin-releasing hormone |
| DGAT1 | Diacylglycerol O-acyltransferase 1 |
| DHA | Docosahexaenoic acid |
| Dio2 | Iodothyronine deiodinase 2 |
| DNA | Deoxyribonucleic acid |
| EMA | European Medicines Agency |
| EPA | Eicosapentaenoic acid |
| F/B | Firmicutes/Bacteroidetes ratio |
| FABP3 | Fatty acid-binding protein 3 |
| FA | Fatty acid |
| FAS | Fatty acid synthase |
| FATP | Fatty acid transport protein |
| FDA | Food and Drug Administration |
| FFAR2 | Free fatty acid receptor 2 |
| FFAR3 | Free fatty acid receptor 3 |
| FGF21 | Fibroblast growth factor 21 |
| FIAF | Fasting-induced adipose factor |
| FMT | Fecal microbiota transplantation |
| FO | Fish oil |
| FXR | Farnesoid X receptor |
| GABA | Gamma-aminobutyric acid |
| GBA | Gut–brain axis |
| GHS-R1a | Growth hormone secretagogue receptor 1a |
| GI | Gastrointestinal |
| GIP | Glucose-dependent insulinotropic polypeptide |
| GLP-1 | Glucagon-like peptide 1 |
| GLP-1RA | GLP-1 receptor agonist |
| GLP-2 | Glucagon-like peptide 2 |
| GLUT4 | Glucose transporter type 4 |
| GPCRs | G-protein-coupled receptors |
| GPR40 | G-protein-coupled receptor 40 |
| HbA1c | Glycosylated hemoglobin |
| HCAR2 | Hydrocarboxylic acid receptor 2 |
| HDL | High-density lipoprotein |
| IKK2 | Inhibitor of nuclear factor kappa-B kinase 2 |
| IL-6 | Interleukin-6 |
| IL-22 | Interleukin-22 |
| JNK1 C | Jun N-terminal kinase 1 |
| LCAD | Long-chain acyl-CoA dehydrogenase |
| LCFA-CoA | Long-chain fatty acyl-CoA |
| LEPR | Leptin receptor |
| LPL | Lipoprotein lipase |
| LPS | Lipopolysaccharide |
| Mapk14 | Mitogen-activated protein kinase 14 |
| MASH | Metabolic dysfunction-associated steatohepatitis |
| MASLD | Metabolic dysfunction-associated steatotic liver disease |
| MC3R | Melanocortin-3 receptor |
| MC4R | Melanocortin-4 receptor |
| MCAD | Medium-chain acyl-CoA dehydrogenase |
| MGAT-2 | Monoacylglycerol acyltransferase-2 |
| MGO | Methylglyoxal |
| NGPs | Next-generation probiotics |
| NPY | Neuropeptide Y |
| NPY5R | NPY receptor type 5 |
| OXPHOS | Oxidative phosphorylation |
| PBEF | Pre-B-cell colony-enhancing factor |
| PDE-5 | Phosphodiesterase-5 |
| PGC-1α | Peroxisome proliferator-activated receptor gamma coactivator 1-alpha |
| POMC | Proopiomelanocortin |
| PP | Pancreatic polypeptide |
| PPARα/γ | Peroxisome proliferator-activated receptor alpha/gamma |
| PPARγ2 | Peroxisome proliferator-activated receptor gamma 2 |
| PRDM16 | PR domain containing 16 |
| PXR | Pregnane X receptor |
| PYY | Peptide YY |
| RBP4 | Retinol-binding protein 4 |
| RCT | Randomized controlled trial |
| RNA | Ribonucleic acid |
| SCD1 | Stearoyl-CoA desaturase 1 |
| SCFA | Short-chain fatty acid |
| SD | Standard deviation |
| SERCA | Sarco/endoplasmic reticulum Ca2+-ATPase |
| SF-1 | Steroidogenic factor -1 |
| SGLT-2 | Sodium–glucose transport protein-2 |
| SIRT-1 | Sirtuin 1 |
| SLC27A1 | Solute carrier family 27 member 1 (another name for FATP) |
| SNAC | Salcaprozate sodium |
| SREBP-1c | Sterol-regulatory element-binding protein 1c |
| SST | Somatostatin |
| TAG | Triacylglycerol |
| T2DM | Type 2 diabetes mellitus |
| TLR4 | Toll-like receptor 4 |
| TNF-α | Tumor necrosis factor-α |
| TRH | Thyrotropin-releasing hormone |
| UCP1 | Uncoupling protein 1 |
| VDR | Vitamin D receptor |
| VIP | Vasoactive intestinal peptide |
| VLDL | Very-low-density lipoprotein |
| WAT | White adipose tissue |
| WHO | World Health Organization |