Alex Williamson, 8, is one of 17 million children who live in U.S. households where getting enough food is a challenge. Sometimes it's hard for the poor to eat healthy because it costs more. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR

Volunteers sorted through food last fall as they stocked shelves at the San Francisco Food Bank in California. As the U.S. continues to struggle through the recession and unemployment is at record highs, food banks are seeing an increased demand. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images