Foods to enhance immunity can be divided into the following categories: first, staple foods, staple foods should avoid excessive intake of sugar and food processing too fine, such as refined rice and refined pasta, pasta, bread-based, should eat more coarse grains to increase the body’s immunity, grains and cereals such as brown rice, rice, corn can increase immunity, and play the role of laxative bowel movements. Second, take vegetables and fruits rich in vitamin C, such as vegetables containing more leafy green, such as cucumber, persimmon, cabbage, lettuce, western lettuce, etc., can increase the immunity of the body. Third, apply foods high in protein, vegetable protein such as tofu, soy products, animal protein such as fish, shrimp, crab’s fine meat and delicate lean meat. Fourth, you can also eat foods high in selenium, vitamin E and zinc, which can also enhance immunity to some extent.