Eating the following foods can increase immunity: First, pay attention to increase the quality of protein, quality protein can promote the synthesis of antibodies. High-quality protein comes from substances such as sea cucumber, milk, eggs, tenderloin and beef. Second, attention should be paid to increase fungal foods, such as mushrooms, enoki mushrooms, fungus and other foods, which can regulate immune function and enhance immunity. Third, you can pay attention to increase the food like olive oil, which is rich in unsaturated fatty acids. Mediterranean diet is a very respected diet, because fresh virgin olive oil is more famous. Fourth, attention can be paid to increase deep-sea fish, such as Spanish mackerel, tuna, swordfish, salmon, rich in high-quality protein as well as unsaturated fatty acids, enhance the immune function of people.