The first benefit is that animal liver is often rich in vitamin A, which can promote vision, especially dark vision, as well as prevent hyperkeratosis of the skin and promote skin refinement. The second benefit is that it can effectively prevent and treat the occurrence of iron deficiency anemia, because animal liver is rich in iron, and it exists in the form of easily absorbed divalent iron, so it also has obvious benefits in the prevention and treatment of iron deficiency anemia.