1, choice of staple food and beans, mineral-rich foods such as wheat, black sesame seeds and mung beans, and bean products such as tofu. 2, the choice of meat, egg and milk pork, pigskin, duck, turtle, snakehead, squid, turtle, crab, jellyfish, sea cucumber, oyster, rabbit meat, clams and other foods with cold taste and nourishing yin and tonifying deficiency. 3, the choice of vegetables, black fungus, tremella, tomatoes, spinach, cabbage and other trace elements rich in food can nourish yin and kidney. 4, the choice of fruits, pears, grapes, mulberries, peaches, pine nuts, sugar cane and other fruits.