| Table 2b. Cholesterol composition of various ingredients (feedstuffs) | |
| Ingredient | Cholesterol (% of fat) |
| Protein Supplements | |
| Squid mantle | 18 |
| Squid viscera | 3 |
| Shrimp whole | 9.9 |
| Shrimp head | 10 |
| Crab | 7.8 |
| Clam | 5.2 |
| Mussel | 1.7 |
| Fish | |
| Pollock | 7.1 |
| Cod | 6.2 |
| Tuna | 1.4 |
| Herring | 0.6 |
| Mackerel | 0.6 |
| Fat Supplements | |
| Squid oil | 1.8 |
| Herring oil | 0.8 |
| Cod liver oil | 0.6 |
| Menhaden oil | 0.5 |
| Salmon oil | 0.5 |
| Data source: Akiyama, Dominy and Lawrence (1991) | |