Cheapest Protein Powder UK
Bodybuilding Warehouse
Sports Fuel Premium Protein
PhD
Diet Whey Protein Powder
Not the cheapest tub. The best value protein.
A 1kg tub at £20 can cost more per gram of protein than a 5kg at £55. Here's the actual working, live.
Sports Fuel Premium Protein
UK's Cheapest Protein
Sports Fuel Premium Protein
The Bulk Protein Company Vegan Gainz
Soya Protein Isolate
Health & Ingredients
Protein Spiking & Amino Spiking UK: 7 Red Flags and Label Checks
Protein spiking and amino spiking explained. How manufacturers game protein tests, the three checks that expose it, and the UK whey proteins that pass, using live price and protein density data.
30 April 2026 · 8 min read
Price Analysis
Why is Myprotein So Expensive: The Real Reasons and How to Save
MyProtein Impact Whey hits £1.20 per 100g on Impact Week - cheapest UK mainstream whey. The RRP is inflated to make codes feel bigger. Real economics in 2026.
23 May 2026 · 8 min read
Behind the Project
Why I Built ProteinDeals, and How the Comparisons Work
Finding protein powder is easy. Checking dozens of websites to discover the genuine best deal is not. Here is why ProteinDeals compares the price of 1g of actual protein.
9 June 2026 · 8 min read
Live Voucher Codes
We track referral and promo codes straight from UK protein retailers, so you never check out at full price.
Refer a Friend
Get £15 credit when you spend £45 on your first order.
Refer a Friend
Get 10% off your first Bulk order.
Refer a Friend
Get £15 off your first Warrior purchase over £55.
UK's Cheapest Supplements
Pure Creatine Monohydrate Powder
Essential AMIN.O Energy + Electrolytes Drink (250ml)
Warrior Vegan Multi Vitamin Gummies - 60 Orange Flavour Gummies
Health & Ingredients
How Much Creatine Per Day: Benefits, Risks and Label Checks
For most adults, creatine is refreshingly simple: take 3-5g of monohydrate every day. Loading reaches full stores sooner, but it does not improve the eventual result.
7 July 2026 · 8 min read
Health & Ingredients
Creatine Monohydrate vs HCl: Price, Quality and Value Compared
Creatine HCL costs 2-3x monohydrate. The research says no performance edge. Solubility, absorption, strength gains, and cost per dose compared for UK 2026.
20 March 2026 · 8 min read
Buying Guide
Supermarket Protein Powder UK: Best Options Compared for 2026
Tesco, Asda and Holland & Barrett protein costs 30-60% more than the same product online. What is actually worth buying off the UK supermarket shelf in 2026.
23 April 2026 · 8 min read
Why Not Just Use Another Comparison Site
Cluttered pages built for ad space, not for finding a price fast.
One clean table. Price per gram of protein, front and centre.
No easy way to line products up side by side across retailers.
Every product ranked and filterable in one live table, side by side.
Prices can sit unchanged for weeks after retailers move them.
Pulled from UK retailer feeds on a rolling basis, not a static snapshot.
Ranks by sticker price, so a small tub can look cheaper than it is.
Ranks by price per gram of protein, so pack size never lies to you.