People shop in a Miami grocery store on July 8. USDA says that despite the drop in unemployment, the number of food insecure Americans has not declined because higher food prices and inflation last year offset the benefits of a brighter job market. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

Rice is just as nice as ice when it comes to bucket challenges. Right: Manju Latha Kalanidhi, creator of the Rice Bucket Challenge, gives grains to a hard-working neighbor. Courtesy of Manju Latha Kalanidhi hide caption

itoggle caption Courtesy of Manju Latha Kalanidhi

Sarah Ramirez runs an organization that brings excess produce to the hungry. Here, she gleans apples from a front yard. Scott Anger/KQED hide caption

itoggle caption Scott Anger/KQED

Schoolgirls eat a free midday meal in Hyderabad, India, last month. India has offered such meals since the 1960s to persuade impoverished parents to send their children to school. A U.N. report released Tuesday finds modest progress in the worldwide fight against chronic hunger. Mahesh Kumar A./AP hide caption

itoggle caption Mahesh Kumar A./AP

In an experiment, people who saw a picture of a big bowl of soup before eating lunch were less hungry a few hours later than those who saw a smaller bowl, regardless of how much they ate at the meal. stuart burford photography/iStockphoto.com hide caption

itoggle caption stuart burford photography/iStockphoto.com

Somali girls line up to receive a hot meal in Mogadishu last year after the worst drought in the Horn of Africa in decades, compounded by war, put millions in danger of starvation. Roberto Schmmidt/AFP/Getty Images hide caption

itoggle caption Roberto Schmmidt/AFP/Getty Images