Duck blood cannot be eaten with eggs.

Duck liver should not be eaten with vitamin C, anticoagulant, levodopa, Youjiangling and phenelzine.

Duck is one of the four major meats of chicken, duck and fish. It is rich in protein, B vitamins, vitamin E, nicotinic acid and so on. It is a kind of nourishing food. Duck meat is rich in nicotinic acid, which has preventive and protective effects on heart disease. Duck meat is cold, sweet and salty, and belongs to spleen, stomach, lung and kidney meridians. It has the effects of tonifying deficiency, nourishing yin, clearing away deficiency and fatigue, nourishing blood and promoting fluid production, nourishing stomach and promoting fluid production, relieving cough and arresting convulsion, clearing away heat and invigorating spleen, tonifying deficiency and reducing swelling, and can be used for treating physical weakness, physical weakness after illness and malnutrition edema. Folk believe that ducks are "the holy medicine for nourishing fatigue".