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Size
5kg
19.8g
95
3g
1g
Whey concentrate
Cheapest Whey Concentrate UK
Compare whey concentrate by cost per 25g protein.
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19g
89
2.5g
0.4g
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17g
93
4.8g
0.8g
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14.8g
91
6.3g
0.8g
Size
1kg
17.5g
94
2.5g
1.3g
14g
95
3g
1g
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19.5g
97
1.5g
1.4g
Size
2kg
16.3g
87
2.5g
1.3g
Size
1kg
18g
95
2.5g
1.3g
Size
2.1kg
19.3g
94
2.6g
0.8g
Size
2kg
17.5g
95
2.3g
1.3g
Size
1.8kg
17.5g
106
3.6g
2.2g
Choose size
18.8g
94
2g
1.3g
18g
99
2g
2.1g
Choose size
18g
96
2.2g
1.5g
Size
2kg
18.8g
95
2.3g
1.3g
Choose size
21.5g
93
0.7g
0.5g
Choose size
14.8g
94
5.4g
1.9g
Size
2.1kg
17.9g
87
0.9g
1.6g
Size
1.8kg
18g
94
2.5g
1.3g
Size
2.27kg
20g
110
4g
1.2g
Size
2kg
18g
95
2.5g
1.3g
Size
2kg
19.4g
97
1.3g
1.1g
Size
1.8kg
18g
95
2.5g
1.3g
Browse All Whey Concentrate Products (113)
About Whey Concentrate Protein
Whey concentrate is the most popular and affordable type of protein powder in the UK. It typically contains 70-80% protein by weight, with the remainder made up of naturally occurring fats, carbohydrates and lactose. For the majority of gym-goers and fitness enthusiasts, concentrate delivers everything you need at a fraction of the cost of isolate or hydrolysate.
Below you will find every whey concentrate product we track, sorted by price per 100g so you can see genuine value at a glance. Use the filters to narrow by brand or size, and compare like for like without the guesswork.
Not sure whether concentrate is right for you? It is the best choice if you want solid protein content at the lowest cost and you do not have lactose sensitivity. If you need lower lactose and higher protein purity, consider whey isolate instead. For plant-based options, see our vegan protein comparison.
Further reading
Shop by goal
Pick a target, see the shortlist.
Brand battles
Two brands, one clear winner.
MyproteinBulk
The UK's two biggest DTC brands, head-to-head
ONMyprotein
Premium global vs budget UK favourite
MyproteinProtein Works
Impact Whey vs Whey 80, cheapest per 25g
Power users
Advanced comparison: every product, filteredDense table view with every product, full filter sidebar, and no editorial surfaces.
Methodology
How we rank every bag.
Independent and transparent. Every price is read from the retailer's own page and checked daily. Here's what goes into each score.
01
Cost normalised to £/25g
Every bag divided by its true protein weight, so you see the real cost of a scoop across any size or brand.
02
Protein density, measured
Protein per 100g from the product's own nutrition panel, so a 90% isolate and a 72% concentrate are never compared on bag price alone.
03
Real prices, checked daily
Prices come from the retailer's own listing, never an RRP, and we re-check them every day rather than leaving a feed to drift.
04
Rankings can't be bought
Rank order is cost per 25g of protein. Some outbound links earn commission, and some Amazon links marked Ad pay per click; none of them buy a position in the table.
Questions, answered.
Whey concentrate is the least processed form of whey protein, containing 70-80% protein along with some fat, lactose, and minerals. It is the most affordable type of protein powder and is widely used for general fitness and muscle recovery.
Prices change regularly. Use the table above to see the cheapest whey concentrate per 100g across UK retailers. Every price is read from the retailer’s own page and re-checked daily.