Proteinflation: Whey Prices Quadruple as Demand Outruns Supply

A 4.5kg bag of whey protein that cost £60 in 2020 now sells for £170 — a near-tripling that Britain's gym community has branded "proteinflation."

Amarpreet Singh, a 30-year-old London banking professional who has drunk protein shakes since he was 16, tracked the price of his usual whey rising from £60 in 2020 to £120 last year — when he found one on eBay for £90 — before it hit £170 today. "I was a bit gobsmacked," he says.

The surge sits at the intersection of booming demand and constrained supply. Protein powders have shed their bodybuilder-only image and drawn a far broader customer base, while food manufacturers now slap high-protein labels on everything from bagels to water. Evie Lewis, a 19-year-old University of Manchester student, started buying powder a few months ago because she felt her diet lacked protein. "You hear a lot more about protein now on social media," she says. At £32.99 for a 420g tub, she has resorted to rationing: "I've been rationing it and using less than what's suggested."

Weight-loss drugs have added a fresh source of demand. People taking Wegovy and Mounjaro typically eat less and are often encouraged to maintain adequate protein intake to preserve muscle while losing weight.

The supply squeeze

Supply has not kept pace, and the wholesale market shows it. According to global market intelligence platform Expana, the European price of one widely used type of high-protein whey stood 130% higher in late August than a year earlier — and more than four times its level three years ago. There is no equivalent UK measure, but Expana says the UK market is closely linked to mainland Europe, where some British businesses source their whey.

Other dairy proteins have climbed too. Expana reports another type of whey protein up 60% over the year, and one type of milk protein concentrate up 80%. The effects reach beyond the fitness market: dairy proteins go into infant formula, and Expana says higher dairy protein costs have contributed to price rises there as well.

Manufacturers say ramping up production takes time and money, because producing high-protein whey requires specialist processing and drying equipment. Some are adapting recipes or hunting for cheaper protein sources instead.

Warrior, a UK sports nutrition company, is among them. "Our whey protein powder was £12.50 on the shelf last year. We've put that up to £17.99 and we're still subsidising that from other aspects of the business," says founder Kieran Fisher. The company is now launching a product using other protein sources, which Fisher says costs around half as much as whey.

Who keeps paying

Max Longman, a 32-year-old Manchester real estate worker who has taken protein supplements for ten years, now spends £60 a month on whey, up from around £45 a year ago. "Loads of foods have protein added to them now. Up until a few years ago, I'd never heard of high-protein yoghurt, and now I eat it three or four times a week," he says. Higher prices have not put him off. "If you're doing exercise and not taking any, you feel like you wouldn't be recovering properly."

Budget-constrained consumers are breaking first. Lewis does not expect to keep buying: "It was affordable on my gap year, but now I'm at university, I don't think I'll continue buying it. It's not a necessity right now." Singh will keep buying, but admits "it's becoming a luxury" — he is switching to a cheaper brand at about £100 a bag.

The market may be starting to adjust. Expana data shows wholesale prices for high-protein whey have begun to level off over the past couple of months, though they remain far above levels of a few years ago. Until capacity catches up, the gap between committed buyers and priced-out ones will define who keeps paying for proteinflation.