Suitable food: (1) Foods that should be eaten more, such as kelp, asparagus, cauliflower, etc. (2) Eat more products that enhance immunity, including mulberry, kiwi fruit, asparagus, pumpkin, jujube, onion, leek, coix seed, kidney bean, yam, mushroom, shrimp skin, crab, herring and prawn. I wish you good health.