Duck gizzards are the muscle stomach of ducks. The stomach of birds is divided into glandular stomach and muscular stomach. The glandular stomach wall is thin, and the parietal cells secrete gastric acid and various digestive enzymes for soaking and digesting food; Muscle stomach has a well-developed muscle wall, the inner wall is covered with a hard horny membrane, and the inner cavity contains some small sand grains, which act like teeth and are used to grind food.
Extended data:
For the crowd
Ordinary people can eat it, especially those with anemia. Those with fullness and indigestion in the upper abdomen can eat more duck gizzards. Especially for patients with stomach diseases, eating duck gizzard can help promote digestion and enhance the function of spleen and stomach.
Duck gizzard is mainly composed of muscle tissue, and its nutritional value and eating taboo are the same as other meats. Rich in protein. Duck gizzards should not be eaten too much at a time, otherwise it will not be easy to digest. When cleaning fresh duck gizzards, peel off the yellow skin on the inner wall. About 80 grams each time.
Baidu encyclopedia-duck gizzards