Mixing oregano in pizza or spaghetti sauce will surely add flavor and making them delicious, but this herbal medicine is loaded with nutrients that can combat deadly cancer and kills bacteria, according to the studies conducted by University of Madrid. Moreover the study showed that oregano’s antioxidant contents will fight cancer 42 times better than apples and 12 times more compared with the oranges. Oregano also has thyanol and carvacrol, nutrients that will stop growth of most types of bacteria.