Pig lung is usually edible, but must pay attention to the right amount, should not be consumed too much. Pig lung contains a large number of essential nutrients and has a certain nutritional value. General per 100 grams contains 353 kilojoules of energy, 12.2 grams of protein, 3.9 grams of fat, 0.1 grams of carbohydrates, 81.4 milligrams of sodium, 10 micrograms of vitamin A, 210 milligrams of potassium, usually eat some of these can be supplemented with nutrients for the body to provide some energy, but pay attention to the amount of food. In addition to buy pig lungs, should pay attention to choose the surface color pink, elastic, if the color is brownish green or grayish white, there is a strange smell and other deterioration of pig lungs, it can not be eaten. People who are allergic to pig lungs are prohibited from eating it.