Food photography is about much more than beautifully presented dishes in cookbooks - it’s also being used to change the way we think about what we eat.
Emily Thomas meets three photographers to discuss some of their most powerful images - from a bloody scene in a Thai slaughterhouse to a display of human resilience in a refugee camp.
They explore why still images of food and food production can be a compelling way to communicate about politics, society, and economics. We also hear about the impact such hard-hitting photography can have on the people behind the lens.
To see the images described on the show, plus a few more, visit our homepage www.bbc.com/foodchain
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Producer: Simon Tulett.
(Picture: A Moken spear fisherman diving for his catch. Credit: Dorte Verner)