Drink more yogurt.
Yogurt contains healthy bacteria, which can help correct dietary imbalance and improve the body's disease resistance.
Drink more boiled water.
Drinking plenty of water can keep the nasal cavity and oral mucosa moist and improve the body's disease resistance and immunity.
Eat seafood
Seafood is rich in iron, zinc, magnesium, selenium, copper and so on. Regular consumption can promote immune function.
Appropriate iron supplementation
Appropriate iron supplementation can enhance immunity, but it should not exceed 45 mg per day.
Arginine supplementation
Sea cucumber, eel, loach, cuttlefish, yam, black sesame, ginkgo, bean curd skin, frozen bean curd, sunflower seeds, hazelnut and so on are rich in arginine, so eating more helps to enhance immunity.