Eating pig’s blood can supplement the following substances: 1, iron, because pig’s blood is rich in iron, and is easily absorbed in the form of hemoglobin iron, for people with iron deficiency anemia, appropriate consumption of pig’s blood, through the supplementation of iron and have a role in alleviating the symptoms. 2, from the point of view of traditional Chinese medicine dietary therapy can be complementary to the heart meridian, for the heart upset and sleeplessness, shocked wind, cardiac disease, evil heat, insomnia, appropriate consumption of pig’s blood, through the complementary heart and have a very good sedative and tranquil, improve the quality of sleep, and promote physical health. The blood of the pig can help to calm the mind, improve the quality of sleep, and promote the health of the body by tonifying the heart.