Bolster your defenses and avoid getting sick with these natural immune-system boosters.
You don't need to travel far to boost your immunity. You can find some items in your local store (or even in your kitchen!) to help bolster your defenses. Here, Dr. Oz shows you how to avoid getting sick with some natural immunity boosters.
Immunity Booster and Cancer Fighter
As a natural immunity booster, graviola has been traditionally used to kill parasites, ameliorate liver problems, reduce fevers, and help treat colds and the flu. Scientists have studied graviola since the 1940s and most research has been centered around annonaceous acetogenins, a group of natural compounds that appear to have some anti-tumor properties – meaning they may help fight various types of cancer cells and thus help boost immune function.