Pig liver is rich in iron, as well as riboflavin, carotene and nicotinic acid. The iron content ranks first in livestock and poultry meat, which can prevent and treat iron deficiency anemia in children. Children can eat pig liver after 6 months. There are two ways to make pig liver mud: one is to tender the pig liver, cut it into thin slices, grind it with a spoon and mix it into rice paste or porridge; Another method is to cut the pig liver when cooking porridge and scrape it on the side with a knife. When the porridge rolls away, it is scraped off a little bit. As the temperature rises, the liver mud is cooked.