1. Yes. Ox blood has a salty taste and can strengthen the spleen, nourish the heart and activate blood circulation.

2. How to make beef blood: 1000 grams of beef blood, 1 piece of wind ginger, 1 small handful of green onion, 2 cloves of garlic, 3 slices of ginger, appropriate amount of peanut oil, and appropriate amount of oyster sauce. Wash the raw blood, put it into a pot with cold water and cook it, turn off the heat, take it out and put it in cold water to cool down and rinse. Finally, cut into even pieces and set aside. Crush the ginger to make it easier to extract the flavor. Slice garlic, slice ginger, and cut green onion into sections. Heat the oil in the pan over high heat and sauté the ginger, ginger and garlic slices until fragrant. Pour in the beef blood and stir-fry for two minutes, stirring evenly. Pour half a bowl of water, sprinkle with scallions, cover the pot and simmer. Simmer until the onions are soft and cooked and the juice is half dry, then add a little oil or light soy sauce to enhance the freshness. Take out the pot, put it on the plate, and start the meal.