Modern medical research has shown that "physiologically harmful organs" in animals harbor numerous bacteria, viruses, and other harmful substances. Ingesting them accidentally can lead to food poisoning. Fish "black lining":
Most fish have a black membrane on both sides of their abdominal cavity, which contains large amounts of histamine, lipids, and lysozyme. Ingesting histamine can cause symptoms such as nausea, vomiting, and abdominal pain; lysozyme, on the other hand, suppresses appetite. Shrimp "rectum":
The shrimp's rectum runs from the head to the tail along its back and contains bacteria and digestive residue. When preparing, it should be slit open at the head, the contents squeezed out, and the rectum removed. Livestock "three glands":
These refer to the thyroid, adrenal, and diseased lymph glands of pigs, cattle, sheep, etc. Ingesting the thyroid can cause hyperthyroidism, leading to symptoms like dizziness, palpitations, rapid pulse, loss of appetite, nausea, excessive sweating, and fever. Ingesting the adrenal glands and diseased lymph glands can also lead to various diseases. Poultry "tail bud":
The "tail bud" of poultry such as chickens, ducks, and geese refers to the area at the top of the buttocks where the tail feathers grow. Its scientific name is the "bursa of Fabricius," and it is a place where lymphoid tissue is concentrated. Bacteria, viruses, and various carcinogens ingested by the poultry are stored in this sac and cannot be broken down. Eating this part can easily lead to infection. Sheep "suspensory ligament":
This is a viral tissue found in the hooves of sheep, usually appearing as a string of beads or round in shape. It must be removed before consumption. Rabbit "scent glands":
Rabbits have three pairs of glands with a very strong odor. The first is the white inguinal gland, located under the skin on both sides of the penis in males (near-circular and small) and on both sides of the clitoris in females. The second is the brown inguinal gland, located next to the white inguinal gland. The third is the rectal gland, located on the walls of the rectum, shaped like a long chain. If these are not removed, the meat will have an extremely strong and foul smell, making it difficult to eat.