| Leptin | 16 | Found via general search |
| Leucine | 0.13117 | UniProtKB |
| Leukocyte cell-derived chemotaxin-2 | 16.39 | UniProtKB |
| Leukocyte-associated immunoglobulin-like receptor 1 | 31.469 | UniProtKB |
| LIF (leukemia inhibitory factor) | 50 | 26807429 |
| LIGHT (TNFSF14, CD258) | 20.4 | Found via general search |
| Linoleic Acid | 0.28 | Found via general search |
| Lipocalin-2 | 20 | Found via general search |
| Lipopolysaccharide-binding protein | 53.384 | UniProtKB |
| Lipoxin A4 | 0.3525 | UniProtKB |
