Duck meat is rich in nicotinic acid, which is one of the two important coenzymes in human flesh and has a protective effect on patients with heart diseases such as myocardial infarction. Duck meat is cold, sweet and salty, which mainly tonifies fatigue, nourishes the yin of the five internal organs, clears the heat of fatigue, nourishes blood and promotes blood circulation, nourishes the stomach and produces fluid, relieves cough and spasms, and eliminates snail stagnation.