| BAs | Bile acids |
| DPP-4 | Dipeptidyl peptidase IV |
| EECs | Colonic enteroendocrine cells |
| FFAR | Free fatty acid receptor |
| FOS | Fructooligosaccharides |
| FXR | Farnesoid X receptor |
| GIP | Gastric inhibitory polypeptide |
| GIPR | GIP receptor |
| GLP-1 | Glucagon-like peptide-1 |
| GLP-1R | GLP-1 receptors |
| GPR | G-protein-coupled receptor |
| LPS | Lipopolysaccharide |
| NAFLD | Non-alcoholic fatty liver disease |
| PCOS | Polycystic ovary syndrome |
| PYY | Peptide YY |
| SCFAs | Short-chain fatty acids |
| T2DM | Type 2 diabetes mellitus |
| TMAO | Trimethylamine N-oxide |
| Treg | Regulatory T cell |
| NAS | Non-caloric artificial sweetener |