Composition of Various Types of Foods
| Types of food | Percent of organic matter | ||
| Protein | Carbohydrate | Fat | |
| Fruits | 2-8 | 85-97 | 0-3 |
| Vegetables | 15-30 | 50-85 | 0-5 |
| Fish | 70-95 | 0 | 5-30 |
| Poultry | 50-70 | 0 | 30-50 |
| Eggs | 51 | 3 | 46 |
| Meat | 35-50 | 0 | 50-65 |
| Milk | 30 | 40 | 30 |