"Compendium of Materia Medica" records: "Beef has the functions of nourishing middle energizer, strengthening spleen and regulating stomach. Beef can replenish qi, and the effect is the same as that of Astragalus. Bovine pith has the functions of tonifying middle energizer, replenishing essence and marrow, and can prolong life if taken for a long time. Li Shizhen commented on oxtail soup, saying, "Cattle pith can moisten the lungs and tonify the kidneys, and make the muscles happy. It has a miraculous effect in treating fracture and rubbing pain. "