Chicken Soup
Chicken soup is proved to block the movements of inflammatory cells in the body. This is very important in fighting infections and alleviating flu symptoms. During cooking, the chicken will release a form of amino acid called cysteine. This substance is able to stimulate the production of white blood cells, thus improving your immune system. Also, the salty broth in the soup can keep your mucus thin as other cough medicines. Try to have a bowl of chicken soup when you get sick. Consider adding onions or garlic to increase its immune-boosting potency. [6]
