Nuts:
Nuts are delicious snacks and also contain a variety of nutrients which aid the immune system to keep the normal function going on. The nutrients in nuts include copper, zinc, selenium, iron, and folate, which are very important in enhancing the immune system function. Another excellent antioxidant is present in the chestnuts, which is vitamin C. the almonds are also an excellent choice for boosting the immune system because it contains loads of vitamin E, which is a powerful antioxidant.