Volunteers at the Maryland Food Bank in Baltimore sort and box food donations on a conveyor belt. The bank started working with groups like the USO in 2013 to provide food aid to families affiliated with nearby military bases. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR

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

Food banks have become a primary source of nutrition for rural farmworker communities in the Central Valley. Scott Anger/KQED hide caption

itoggle caption Scott Anger/KQED

Food bank client Jamie Senik takes a break near her garden plot sponsored by the Community Food Bank of Southern Arizona. She grows food for herself and her diabetic mother. Pam Fessler/NPR hide caption

itoggle caption Pam Fessler/NPR