The hoof is the name given to it in the south and southwest of the Yangtze River, and is also known as the elbow in the north, which is the part of the pig's leg near the hoof.

The elbow can be divided into the front elbow and back elbow, the front elbow (also known as the front elbow), thick skin, tendons, gelatinous heavy, lean meat, often cooked with skin, fat and not greasy, suitable for burning, steak, sauce, stew, brine, soup, etc.; back elbow (also known as the back of the elbow), due to the content of connective tissue than the front elbow, skin old and tough, the quality of the front elbow poorer, its cooking methods and uses are basically the same as the front elbow.

The hooves contain more protein, fat and carbohydrates, which can accelerate metabolism and slow down the aging of the body.

Because of the high cholesterol content in the hoof, so the elderly with weakened gastrointestinal digestive function can not be consumed in excess at a time; and suffering from liver and gallbladder disease, arteriosclerosis and hypertension should be eaten sparingly or not eat. Eat dinner too late or before going to bed should not eat hooves, so as not to increase blood viscosity.