According to a Canadian study released this month, an apple a day does keep the doctor away!
Researchers measured the levels of antioxidants in eight varieties of apples and found that the Red Delicious variety -- the most common kind grown in the United States and the easiest to find -- is packed with the highest concentrations of the health-enhancing chemicals. In fact, the skin of the Red Delicious apple has more than six times the amount of antioxidants than the flesh. Though antioxidants are believed to help fight certain diseases, more research is needed to establish whether quantity alone counts. (The study didn't take into consideration whether antioxidants in some apples may be better absorbed than others.)
While apples have significantly lower concentrations of antioxidants than other fruits, particularly many berries, researchers believe their year-round availability and greater popularity might make them a source of antioxidants and fiber for many people.