Six months before the baby, can eat breast milk as much as possible to eat breast milk, breast milk is rich in antibodies, can improve the baby’s immunity. After six months of age, the following foods can be added to complementary foods to improve the immunity of babies: 1, foods containing high VC, VC can improve the function of the body’s immune system, broccoli is the highest VC in vegetables, kiwi is the highest VC in fruits. 2, foods containing high vitamin D, vitamin D important role is to prevent seasonal infections, foods containing high vitamin D are salmon, tuna, mushrooms, etc. 3, potatoes, including yams, taro, sweet potatoes contain immune boosters, 3, potatoes, including yams, taro, sweet potatoes contain immune-promoting activity of mucin, to improve resistance is very helpful. 4, eggs, eggs contain a variety of vitamins and amino acids, easily digested and absorbed by the body, egg yolk lecithin can enhance the body’s immune function. 5, nuts, nuts are rich in selenium, can increase the number of white blood cells, so as to achieve the purpose of eliminating viruses.