People who are allergic to pig liver should not eat pig liver, all other people can eat pig liver, only some people need to eat less. Pig liver is rich in a variety of vitamins. Pork liver is one of the foods that contain high levels of vitamin A. Vitamin A helps to maintain normal vision, healthy skin and mucous membranes, and the normal physiological function of the immune system. Pig liver also contains a lot of vitamin B₂, vitamin B₂ is an indispensable component of energy metabolism. Eating pig liver can also supplement a variety of mineral elements, such as calcium, iron, magnesium, zinc, selenium and so on. Pig liver is very rich in iron, which is an essential element in the formation of hemoglobin. Zinc in pig liver is an important substance for children’s growth and development, and zinc and selenium are also important substances for maintaining the normal physiological function of the human immune system. Therefore, pig liver is a kind of high nutritional value of food, appropriate intake of human body has certain benefits, suitable for most people to eat. However, pig liver should not be consumed in excess. For people with high blood fat, high uric acid, liver and kidney insufficiency, it is recommended to consume less as appropriate. If you are allergic to pig liver, it is forbidden to eat.