We’ve all read about the antioxidant superstars—the blueberries, blackberries, and cherries, for instance—that are so effective at squelching the audacious free radicals that bombard our bodies’ delicate cells every day. But few studies have been aimed at investigating how well our bodies use these antioxidant-rich foods—and whether or not their soaring ORAC (oxygen radical absorbance capacity) scores really translate into practical, disease-fighting capabilities in humans.