| FA | Fatty acid(s) |
| FAME | Fatty acid methyl ester(s) |
| SFA | Saturated FA |
| MUFA | Monounsaturated FA: FA with 1 double bond |
| NMID | Non-methylene interrupted dienoic FA |
| PUFA | Polyunsaturated FA: FA with 2 or more double bonds |
| LCFA | Long-chain FA: FA with 24 or more carbon atoms |
| C18, C20, C22 | Refers to FA with the number of carbons in a molecule, e.g., C18 polyenoic FA |
| Bacterial FA | Odd and branched-chain FA, e.g., 15:0, i-17:0 |