2. Sheep are purely herbivores, so the meat quality is tender and easy to digest than beef, with high protein, low fat, more phospholipids and less fat and cholesterol than pork. It is one of the delicious foods to keep out the cold and keep warm, and can receive the dual effects of tonic and cold protection. According to the traditional theory of health preservation, mutton has a good nourishing effect, and its nature is warm, which is equivalent to ginseng and astragalus. Ginseng and Radix Astragali tonify qi, and mutton tonify shape. A friend on the grassland said that animals that eat grass are most helpful to people, because grass has the strongest vitality. "Wildfire will not completely devour them, but they will grow taller again in the spring breeze."