According to scientists, there are 190 lymph nodes in pigs and about 300 in cattle. Lymphocytes in lymph nodes filter and phagocytose harmful substances such as pathogenic microorganisms and viruses. Therefore, the lymph nodes themselves often accumulate various bacteria and viruses. Sometimes, these pathogenic microorganisms cannot be killed despite high temperature treatment. Therefore, people are prone to various diseases after eating lymph node meat. Therefore, lymph node meat cannot be eaten.