Pig lungs are edible and non-toxic. In fact, like pig liver, it is suitable for most people. Even pregnant women can eat a small amount of pig lungs. Pig lung is rich in nutritional value. It is rich in protein, fatty carbohydrates, zero calcium and iron, and vitamins B-I, B-II and B-III. It can tonify deficiency and strengthen spleen and stomach, and is suitable for deficiency of both qi and blood.