Vitamin A deficiency causes blindness and death in tens of thousands of children worldwide each year. Researchers are now testing "super bananas," genetically engineered to add alpha and beta carotene, which the body converts to Vitamin A. Another project, begun more than a decade ago, engineered carotene-enriched "golden rice." Traditional plant breeding is also creating "biofortified" staple foods like cassava and sweet potatoes. We explore how "super foods" might address nutrition and health concerns here and around the world.