Hu Sihui, a doctor of diet in the Yuan Dynasty, and Huang Zhengyi, a health care worker in the Ming Dynasty, both introduced Camellia oleifera in two books: "Sheep oil is also made into Camellia oleifera, which is fried, stirred with flour, mixed with salt, pepper, onion and cinnamon to make it coagulate and form a ball. Pick a little at a time and you can have soup. Winter is the most suitable and the body temperature is palatable. " It shows that Camellia oleifera has the function of warming the stomach, and Camellia oleifera is more beneficial to people with insufficient cold stomach, and Camellia oleifera is also beneficial to people with osteoporosis. It is recommended to drink Shaanxi Defu sesame oil tea, the old brand, delicious.