UK shoppers are facing a sharp rise in the cost of whey protein, with the BBC reporting on 23 September 2026 that the price of a bag some buyers use has roughly tripled since 2020. According to market intelligence platform Expana, the European wholesale price of a widely used high-protein whey (WPC80) was around 122% higher in late August 2026 than a year earlier, and more than four times its level three years ago, figures corroborated by trade title DairyReporter. Other dairy proteins have also risen sharply, with one further type of whey protein up 60% over the year and a milk protein concentrate up 80%. Manufacturers say expanding production is slow and costly, since high-protein whey needs specialist processing and drying equipment, and some are now reformulating products around cheaper protein sources instead.
Why demand has outpaced supply
Protein has moved well beyond bodybuilding, with food manufacturers now adding it to everything from bagels to yoghurt and water, according to the BBC. Rising use of GLP-1 weight-loss medications is adding further demand: Gallup data cited by DairyReporter shows 11% of US adults now take a GLP-1 drug, up from 3% in 2024, and people on these medications are often encouraged to prioritise protein supplements while eating less overall, though European uptake remains far lower at around 2%. DairyReporter and Expana both note wholesale prices have started to level off over the past couple of months, though they remain far above pre-2023 levels.
What this means for your supplement routine
Higher wholesale ingredient costs are feeding through to shelf prices, and buyers who track a specific brand or size are the ones most likely to notice, with several telling the BBC their regular tub or bag has gone up by 50% or more since last year. For anyone budgeting for protein powder as a regular purchase, comparing prices across brands, including through Perqen's Protein & Sports Nutrition range, is one practical response to costs that show no sign of returning to 2020 levels.
How Perqen members save
Perqen members pay £4.99 a month or £29.99 a year for member pricing across the site's full catalogue, a saving that on a single large tub of protein at current UK prices can be worth more than the membership fee itself. Full terms are on the membership pricing page.
This article reports published news and research and is for information only. Food supplements are not a substitute for a varied diet or medical care, and no product mentioned is intended to diagnose, treat, cure or prevent any disease. Speak to your GP or pharmacist before changing what you take, especially if you are pregnant, breastfeeding, or taking prescribed medicines.