On the “food contradiction” problem, just a folk saying, in nutrition has not been recognized. Pig’s blood and what food can not be eaten together, some of the daily food can be eaten with pig’s blood reasonably with food. Pig’s blood is a very common type of blood product food, containing some nutrients available to the human body, such as 100 grams of pig’s blood protein content of about 12.2g, about 8.7mg of iron, which can be eaten with a variety of vegetables or other foods, conducive to the intake of nutrient-rich. However, it should be noted that pig’s blood also contains a certain cholesterol content, for patients with hyperlipidemia, hypertension, coronary arteriosclerosis and other diseases, according to their own conditions to do discretionary consumption as well.