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So we started farming this bird called chicken, and it spread around the world. But what does it actually TAKE to feed us the amount of chicken we want to consume?

100 years ago this was a scrawny, egg-laying bird, only good for a stew once her eggs ran out – no one ate chicken meat. Fast forward to today and it’s the most consumed protein on the planet. How did we come to eat it in the first place, and what are the consequences of producing chicken meat on the vast, industrial scales we now consume it?

Dr Chris van Tulleken uncovers the extraordinary accident of history that birthed a new industry, and changed the way we eat – and think about – meat forever.

Produced by Emily Knight and Lucy Taylor.