Foods that contain vitamin D: 1. Sea fish with high fat content, such as rainbow trout and salmon, are often rich in vitamin D. 2. Animal livers, such as pig liver, chicken liver, goat liver, duck liver and goose liver, are very rich in vitamin D. 3. Egg foods, such as eggs, duck eggs, goose eggs and quail eggs, are rich in vitamin D in their yolks. 4. dairy foods, such as cow’s milk, goat’s milk and horse’s milk.