Every 100g duck gizzard contains protein 17.9g and cholesterol 153mg, and the cholesterol content of an egg is 250mg, which is much higher than that of duck gizzard. High cholesterol food mainly refers to animal fat, animal viscera, egg yolk and other foods, including pig liver, sheep liver, goose liver, eggs and so on.

Long-term consumption of high-cholesterol food is easy to cause atherosclerosis, leading to plaque formation on the inner wall of blood vessels and narrowing of blood vessels.