CompareProtein Powder
Find the UK's cheapest prices
Compare tracked UK protein powder prices across whey, isolate, vegan, casein, clear protein and mass gainers. Compare the cost of 25g of protein, then check the exact pack, nutrition and retailer price before buying.
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001180 £35.99 25.0g102£0.200 2500190 £20.99 25.0g102£0.233 1000136 £11.99 25.0g102£0.333 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001170.7 £35.99 25.0g107£0.211 2000168.3 £17.99 25.0g107£0.264 1000134.1 £11.99 25.0g107£0.351 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001160 £35.99 25.0g121£0.225 2000164 £17.99 25.0g121£0.281 1000132 £11.99 25.0g121£0.375 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001172 £39.99 25.0g117£0.232 2500186 £21.99 25.0g117£0.256 1000134.4 £12.99 25.0g117£0.378 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001160 £38.99 25.0g106£0.244 3000196 £29.99 25.0g106£0.312 1000132 £13.49 25.0g106£0.422 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001160 £39.99£59.99 -33%25.0g119£0.250 1000132 £14.99£19.99 -25%25.0g119£0.468 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 50001177 £44.99 25.0g105£0.254 30001106.2 £27.99 25.0g105£0.264 1000135.4 £13.99 25.0g105£0.395 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 1000132.8 £8.99£20.00 -55%25.0g118£0.274 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 2024.8 £7.99 25.0g116£0.322 402024.8 £17.99 25.0g116£0.725 |
FlavourSize (g)QtyServingsOfferTotal Per 25g protein 40001139.2 £47.99 25.0g108£0.345 2000169.6 £25.99 25.0g108£0.373 1000134.8 £13.99 25.0g108£0.402 |
Buying guidance
Understand the comparison
Compare tracked UK protein powder prices across whey, isolate, vegan, casein, clear protein and mass gainers. Compare the cost of 25g of protein, then check the exact pack, nutrition and retailer price before buying.
Price Analysis
Best Value Protein Powder UK 2026: Four Picks Worth Buying
Bulk Pure Whey is the everyday value benchmark; Myprotein Impact Whey can win when its checkout promotion closes the cost-per-protein gap. Four picks for different buyers.
10 min read
Buying Guide
How to Buy Cheap Protein Powder UK: 10 Value Checks
Find genuinely cheap protein powder in the UK by comparing the cost of the protein inside—not simply the bag price. Includes whey, vegan, isolate and clear protein.
10 min read
Buying Guide
Protein Powder Price Comparison UK: Top Picks, Prices and What to Buy
UK protein prices become comparable only after pack size and protein percentage are normalised. Learn the useful metrics, the common traps and the savings tactics worth checking.
8 min read
How It Works
How to Calculate the Cost of 25g of Protein: A Practical Guide
Calculate what 25g of actual protein costs, with worked examples for different bag sizes and protein percentages.
6 min read
How It Works
How ProteinDeals Tracks UK Protein Prices: Where Our Data Comes From
How ProteinDeals collects retailer products, imports variant-level prices, stores price history and turns current UK listings into comparable per-serving, per-100g and per-protein values.
8 min read