Twenty catties of duck eggs can be matched with two catties of salt.

Duck eggs contain protein, phospholipids, vitamin A, vitamin B2, vitamin B 1, vitamin D, calcium, potassium, iron and phosphorus.

The protein content of duck eggs is the same as that of eggs, which has the function of strengthening the body.

The total amount of various minerals in duck eggs is much more than that in eggs, especially salted duck eggs are rich in iron and calcium that are urgently needed by human body, which is good for bone development and can prevent anemia.

Duck eggs contain more vitamin B2, which is one of the ideal foods to supplement B vitamins.