Small county liver refers to chicken gizzards and duck gizzards. Chicken gizzard is the stomach of chicken, that is, chicken gizzard and chicken liver. The stomachs of birds are divided into muscular stomachs and glandular stomachs. The glandular stomachs are smaller and secrete gastric juice, while the muscular stomachs are larger and thicker and are responsible for storing and grinding food, so it can be said that the roe deer refers to the stomach of chickens.

The main nutrients of duck gizzards are carbohydrates, protein, fat, nicotinic acid, vitamin C, vitamin E and minerals such as calcium, magnesium, iron, potassium, phosphorus, sodium and selenium. Duck gizzards are rich in iron, so women can eat more appropriately.