The soaring popularity of weight-loss drugs has triggered a global surge in demand for whey protein, raising fears of a shortage. Prices for the dairy product have quintupled to record levels as companies scramble to secure supplies.
Whey protein, a byproduct of cheese production, is rich in essential amino acids and easily absorbed. It has become critical for users of GLP-1 medications like Mounjaro, who are advised to increase protein intake to preserve muscle mass while losing weight.
Data from DCA Market Intelligence shows food-grade whey powder prices in north-west Europe have hit approximately €1,700 (£1,469) per tonne, the highest ever, with a 50% rise since January. Vesper, a commodity intelligence platform, reports that the price of 80% whey protein concentrate surged from £4,302 per tonne in June 2023 to £23,751 in June 2024.
Analyst Jasper Endlich of Vesper noted, “There’s clearly a shortage… Manufacturers would like to produce more and build safety stocks, but they haven’t been able to.” He added that new production plants are opening, and some firms are blending whey with cheaper milk protein to manage costs.
The US Department of Agriculture reports tightening supplies, especially for whey protein concentrate (WPC) 34%, with some suppliers already sold out through 2026. One manufacturer is expected to stop producing WPC 34% after summer, further reducing availability.
Small businesses are feeling the pinch. Erika Tamayo, founder of protein brand Hermosa, said, “Every quarter the price is soaring… We’re buying it at double the cost compared to last quarter.” She noted that larger companies can absorb price hikes, but smaller firms struggle to maintain premium quality without passing costs to customers.



