The surprising origin of whey protein powder

Protein is everywhere — in our shakes, our snack bars, our cultural obsession with optimization — but the story of how it became nutrition's golden child has more to do with marketing than science. Today, we unpack the hype machine behind our favorite macronutrient and the hidden bodily process that might matter far more for our health. Big ideas from Gavin Weedon and Samantha King alongside gastroenterologist Shilpa Ravella.

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