Wendell Pierce, the actor and co-owner of Sterling Farms grocery store, chats with Dwight Henry, who will be making doughnuts and buttermilk drops in the store. David Grunfeld/The Times-Picayune /Landov hide caption

itoggle caption David Grunfeld/The Times-Picayune /Landov

As a new documentary shows, a plate of soul food is loaded with questions about history, identity and health. Laylah Amatullah Barrayn/PBS hide caption

itoggle caption Laylah Amatullah Barrayn/PBS

Five days a week, the Peaches & Greens truck sells affordable fruits and vegetables to families on public assistance, people without a car, homebound seniors and even local workers who otherwise would grab fast food or candy for a snack. Carlos Osorio/AP hide caption

itoggle caption Carlos Osorio/AP

Participants, including Mario Batali, right, at the "Eat In," a Food Day lunch event in Times Square in New York on Monday.

Philip Greenberg/Philip Greenberg for Food Day hide caption

itoggle caption Philip Greenberg/Philip Greenberg for Food Day