1. The vitamin content of duck eggs is higher than that of eggs; 2. protein content, the protein content in eggs is very high; 3. Mineral content: the total amount of various minerals in duck eggs is more than that in eggs; 4. Fat content, the fat content of eggs is less than other eggs, and the fat content of duck eggs is higher; 5. Efficacy, duck eggs are cool, clearing heat and removing fire, and eggs are cold, so it is advisable to replenish qi and replenish essence.