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The Guardian - US
The Guardian - US
Business
John Semley

All the whey up! How a dairy byproduct became the star of the ‘proteinmaxxing’ boom

Illustration of a cow with a large whey protein tub replacing its head against a sky with clouds
As demand has grown in the past few years, the price of whey protein concentrates has shot up as much as fivefold. Illustration: Guardian Design / Getty Images

For generations, the Meives family made cheese. Tony Meives’s grandfather, a Swiss immigrant, and his father both ran small cheese factories in Wisconsin, in the heart of America’s dairyland. “I worked in the cheese factory my whole life,” Meives says. “I have four world-class cheesemakers in my family.” But when it came time to inherit the family business, Meives found there was more money in the industrial runoff that his grandfather would have once thrown away. Today, the 39-year-old bodybuilder and gym owner runs a company that sells whey protein powder, the watery byproduct of cheesemaking that was once considered waste. “Twenty years ago, the only people who took whey were bodybuilders,” he says. “Over the past five years, the market has really opened up to each and every type of person you can probably think of.”

When Robert F Kennedy Jr, the US health secretary, declared late last month, that “the war on protein is over”, he sounded a bit like one of those Japanese soldiers of second world war lore, who spent years hunkering in the jungles of south-east Asia, oblivious to the fact that hostilities had long ceased. Perhaps there was a time when advice leaned more towards a diet based around fruit, vegetables and carbohydrates – but by May 2026, the war on protein was surely over. Protein had won.

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