# Collagen's dirty secret — and its clean future | Fei Luo

An episode of [TED Health](https://invisiblenetwork.ai/podcast/470623173), 30 Sep 2025, 8:29.

Audio: https://sphinx.acast.com/p/open/s/67585b08102e6d4448d360b1/e/68bb08690b62df52932e5a78/media.mp3

From cosmetics to nutrition, collagen is seemingly everywhere — but we don't often discuss its ethically questionable sources, says chemical engineer Fei Luo. She delves into the groundbreaking technology that uses genetically modified yeast to brew animal-free collagen, a process that could pave the way for a functional, tasty and harm-free future for this crucial protein. Hosted on Acast. See acast.com/privacy for more information.

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