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Fortune
Fortune
Sasha Rogelberg

David Protein CEO says ‘diet trends are over’ because of GLP-1s: ‘What’s next is really hard to predict’

Peter Rahal speaks on stage in front of a black and purple background. (Credit: Taylor Hill—Getty Images)

Every January, David Protein founder and CEO Peter Rahal knew what to expect: the emergence of a new diet trend like keto or paleo in “very volatile swings.” This year, however, was different. There was no new fad diet.

David Protein’s chief executive is familiar with food trends. Before launching the David brand of protein bars and ice cream in 2024, he created the RXBar, eventually selling it to Kellogg’s for $600 million.

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