Pork, also known as dolphin meat, comes from domestic pigs and is the most popular meat in East and Southeast Asia. Pork is sweet and salty, rich in protein, fat, carbohydrate, calcium, iron and phosphorus, and has the functions of tonifying deficiency, strengthening body, nourishing yin and moistening dryness. There are generally two ways to eat pork, one is to eat fresh cooked food, and the other is to eat processed and preserved pork. The related processed products of pork include ham, bacon, dried meat, bacon and sausage.