Kohlrabi, peeled and sliced, is refreshing, but lightly poached is good too, says chef April Bloomfield. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Dan Gray is a restaurateur and food blogger in Seoul, South Korea. Elise Hu/NPR hide caption

itoggle caption Elise Hu/NPR

The Birth of Venus, by Sandro Botticelli, depicts the goddess of love floating on a giant scallop shell. The word aphrodisiac derives from her Greek name, Aphrodite. Sandro Botticelli/Wikimedia hide caption

itoggle caption Sandro Botticelli/Wikimedia

Matt Stonie (right) is crowned winner of the annual Fourth of July Nathan's Famous Hot Dog Eating Contest in Brooklyn, N.Y., Saturday. Stonie defeated eight-time champion Joey Chestnut 62-60. Andrew Kelly/Reuters/Landov hide caption

itoggle caption Andrew Kelly/Reuters/Landov

"Who Gets Kissed" corn is a variety bred in Wisconsin specifically for organic farmers. It's named for an old game. At corn husking time, a lucky person who found a rare ear of corn with red kernels had the right to kiss anyone that he or she chose. Courtesy of Adrienne Shelton hide caption

itoggle caption Courtesy of Adrienne Shelton

University of Chicago medical student Manny Quaidoo adds a pinch of salt to the spinach feta frittata he's learning to cook as part of a culinary medicine class. Monica Eng/WBEZ hide caption

itoggle caption Monica Eng/WBEZ

NOAA scientists estimate they saw about 10 billion sea scallops off Delaware and southern New Jersey this spring as part of an annual survey. Andrew Martinez/Science Source hide caption

itoggle caption Andrew Martinez/Science Source