The leaves of the tea plant (Camellia sinensis) contain antioxidants called catechins, which may help prevent cancer in a variety of ways, including keeping free radicals from damaging cells. Lab studies have found that catechins in tea can shrink tumors and reduce tumor cell growth. Some — but not all — studies in humans have also linked drinking tea to a lower risk of cancer. Both green and black teas contain catechins, but you’ll get more antioxidants from green tea, so you may want to consider a cup or more per day in your anti-cancer diet.
