According to researchers blueberries top the list in terms of their antioxidant activity compared to 40 other fresh fruit and vegetables.
A little berry that is big on taste and nutrients, blueberries are packed with vitamin C, which reduces the severity and duration of colds and flu.  Vitamin C is also needed for growth and skin repair.  Blueberries can also help to protect eyesight –-- and play an important role in protecting the heart and preventing cancers.  Another antioxidant found in blueberries, ellagic acid, has been proven to inhibit cancer in laboratory studies.  Research shows that people who consume fruit with high amounts of this powerful antioxidant are three times less likely to develop cancer than those who consume little or none.