During ancient Egyptian times, garlic was used to help heal infections and wounds. Since then, science has shown that garlic’s sulfur compounds increase the production of virus-killing antibodies by 40% – often within 48 hours. Getting the benefit is as simple as adding a clove or two of garlic to your favorite dressings and dishes, say scientists reporting in the Journal of Immunology Research. Hint: Letting chopped garlic rest for 10 minutes before cooking enhances its potency.
Of all the superfoods, tea has some of the highest levels of polyphenols, which are critical for immune function, as well as antioxidants and catechins, which help the body fight off viruses and bacteria.