Liver is an important organ for animals to store nutrients and detoxify. It is nutritious and has nutritional and health-care functions. It is one of the most ideal blood-enriching products. Nutritional analysis of pig liver: \ x0d \ x0d \ pig liver 1, pig liver is rich in iron, and it is the most commonly used food in blood-enriching food. Eating pig liver can regulate and improve the physiological function of hematopoietic system in anemia patients; \x0d\ 2。 Pig liver is rich in vitamin A, which can maintain normal growth and reproductive function. It can protect eyes, maintain normal vision, prevent eye dryness and fatigue, and maintain healthy skin color, which is of great significance to skin bodybuilding; \x0d\ 3。 Regular consumption of animal liver can also supplement vitamin B2, which plays an important role in supplementing important coenzymes and detoxifying some toxic components. \x0d\ 4。 Pig liver also contains vitamin C and trace element selenium, which are not found in common meat foods. It can enhance human immune response, resist oxidation, prevent aging, inhibit the generation of tumor cells, and treat acute infectious hepatitis. \ x0d \ x0d \ Nutritional value of pig liver: \ x0d \ x0d \ 1. The liver is the largest poison transfer station and detoxification organ in the body, so don't cook the fresh liver in a hurry. Wash in tap water for 10 minute, and then soak in water for 30 minutes; \x0d\ 2。 The cooking time should not be too short, at least it should be fried for more than 5 minutes, so that the liver is completely grayish brown and there is no bleeding silk; \x0d\ 3。 Spinach is the best medicine for anemia; \x0d\ 4。 Pig liver often has a special smell. Before cooking, wash the liver blood with clear water, then peel off the thin skin, put it in a plate and soak it in proper amount of milk. After a few minutes, the smell of pig liver can be removed. \x0d\ 5。 Pig liver should be cut and cooked by now. Bile will flow out after fresh pig liver is cut for a long time, which will not only lose nutrients, but also cause many particles to condense on the fried pig liver, which will affect the appearance and quality. Therefore, after the pork liver is sliced, the seasoning and wet starch should be quickly mixed and cooked as soon as possible. \ x0d \ x0d \ Pig liver is suitable for people: the general population can eat \x0d\ 1. Suitable for people with qi and blood weakness, sallow complexion and iron deficiency anemia; It is suitable for eye diseases in liver blood deficiency, such as blurred vision, night blindness, dry eye, keratomalacia after measles in children, internal and external cataracts, etc. Suitable for cancer patients and after radiotherapy and chemotherapy; Suitable for people with anemia, who often work in front of the computer and love to drink; \x0d\ 2。 People with hypertension, coronary heart disease, obesity and hyperlipidemia should not eat pig liver because of its high cholesterol content. Pig liver with discoloration or nodules due to illness should not be eaten. Dietotherapy effect of pig liver: pig liver is sweet, bitter and warm, belonging to liver meridian; Has the effects of nourishing liver, improving eyesight and nourishing blood; Can be used for treating blood deficiency and chlorosis, night blindness, pinkeye, edema, beriberi, etc. Pig liver food is similar: pig liver should not be eaten with fish, sparrow meat, buckwheat, cauliflower, soybean, tofu, quail meat and pheasant; It is not suitable to eat with foods rich in vitamin C such as bean sprouts, tomatoes, peppers, edamame and hawthorn; Animal liver should not be eaten with vitamin C, anticoagulant, levodopa, Youjiangling and phenelzine. \ x0d \ x0d \ However, when iron is supplemented with pig liver, the eating method is very important. The most common way for people to eat pork liver is to go to the supermarket to buy stewed pork liver and go home to slice it. This way of eating is convenient and easy, but it is not a good choice for iron supplementation. According to China Food Composition Table 2002, 100g fresh pig liver contains 22.6 mg of iron, while 100g cooked pig liver contains only 2 mg of iron. \ x0d \ x0d \ This is because the tissue structure of pig liver is very special. It is not dense muscle tissue (like meat), but vascular tissue. The rich blood vessels of pig liver contain a lot of blood, and hemoglobin in blood contains more iron. In fact, iron is the key raw material for the synthesis of hemoglobin. This is also the reason why the iron content of fresh pig liver is high. When fresh pig liver is boiled in water, most of the "blood water" containing hemoglobin (iron) is lost in the soup, so the iron content in braised pig liver is greatly reduced. Eating braised pork liver instead of pork liver soup is not good for iron supplementation. \x0d\\x0d\ Similarly, when frying pork liver, many people will cook it or oil it first, which will also cause iron loss. \ x0d \ x0d \ In order to give full play to the iron-supplementing function of pig liver, cooking methods should be adopted to preserve "blood water" (containing iron), such as fried pig liver or pig liver soup. The pig liver must be thickened first, which can prevent the loss of "blood water" in the pig liver and help preserve the iron in the pig liver. Although making pork liver soup will make "blood water" lose into the soup, you should still drink the soup when you eat it, which can also preserve iron. \ x0d \ x0d \ nutritional components of pig liver. Every 100g pig liver contains protein 2 1.3g, iron 25.0mg and vitamin A 8700 international units. Compared with 100g lean pork, protein of the latter is 9.5g, iron is 1.4mg, and vitamin A is zero. \x0d\ protein is an important material foundation of human body, and life activities such as body growth and organ function development are based on the synthesis and accumulation of protein in the body. Iron is the raw material for producing hemoglobin, which can play a role in treating and preventing anemia. Vitamin A is closely related to the normal vision of eyes. It is related to the formation and function of epithelial cells on the body surface and in vivo; It is also related to the synthesis of glycoprotein, and immunoglobulin is also a kind of glycoprotein. Without vitamin A, it will affect the immune function of human body. \x0d\ As can be seen from the above, pig liver is indeed a nutritious food that human body needs. But cooking methods should pay attention to our digestion ability. For example, babies can make liver mud, and children can eat braised pork liver and liver tips. Although pig liver is good, it should be eaten in moderation, 2-3 times a week. If you still take cod liver oil, you should pay attention to the dosage to prevent excessive vitamin A.