2. Chicken gizzards are the stomachs of chickens, that is, chicken gizzards, chicken livers and endothelium corneum Gigeriae Galli. The stomachs of birds are divided into muscular stomachs and glandular stomachs. The glandular stomachs secrete gastric juice, while the muscular stomachs are large and fleshy, which are responsible for storing and grinding food.
3. Chicken gizzards are rich in nutrients, including monounsaturated fatty acids, polyunsaturated fatty acids, vitamin A, vitamin B2, vitamin A, vitamin B1, vitamin E, calcium, sodium, zinc, manganese, phosphorus, magnesium, selenium, potassium, iron and copper.