"At what point in the process do we inject the pink slime?" asks former MythBusters host Grant Imahara. As part of its new US marketing campaign, McDonald's is opening the doors to its food production system through a multi-pronged campaign called "Our food. Your questions".

People want big brands to consider the planet as well as their patrons. Chipotle is ahead in this game, with the recent release of their app-game hybrid campaign The Scarecrow demonstrating the power of emotional storytelling.

From understanding what exactly is in the coffee you’re drinking, to knowing how polluted the air in your back garden is, people are looking for microscopic details to feel informed. But who is this new curious group of people? And what will they do with this information?

If obesity is an international crisis, sugar is increasingly cast as the chief villain. In response, Coca-Cola, the world's most valuable brand, has openly pressed moral 'reset', throwing itself into the drive for collective health improvement.