CHEAPEST
Choose size
17.8g
98
2.3g
1.9g
Best under £30
Best Protein Powder Under £30 UK
Every protein powder under £30 a tub, ranked by cost per 25g of protein across 181+ UK brands. Every price read from the retailer’s own page and re-checked daily, no sponsored rows.
116 products trackedChecked daily
Back to all proteinQuick filters
Size
1kg
20.9g
101
2.6g
1.9g
Size
1kg
20.9g
101
2.6g
1.9g
HIGHEST PROTEIN %
Size
900g
21g
105
0.8g
1.8g
Size
1kg
20g
101
-
-
Choose size
21g
89
0.7g
0.2g
Size
900g
21g
92
1.2g
0.1g
CHEAPEST
Size
1kg
17.5g
95
2.5g
1.5g
Size
1kg
20g
94
1g
0.9g
Size
900g
20.3g
98
1.6g
1g
BULK GAINS
Size
4kg
6g
96
15.5g
1g
Size
900g
19.3g
100
0.7g
2.2g
Size
1kg
17.5g
94
2.5g
1.3g
Size
1kg
21g
95
0.3g
1.1g
17.3g
91
1.1g
1g
Size
900g
18g
93
1.3g
1.6g
Size
4kg
8g
75
7g
1.7g
Size
1kg
20g
93
1g
0.8g
Size
1kg
20.9g
-
-
-
Size
1kg
20.8g
87
0.6g
0.2g
Size
1kg
21g
95
0.3g
1.1g
Size
1kg
12.5g
93
2g
4.5g
Size
750g
19g
95
2.4g
0.8g
Size
1kg
12g
87
1.6g
2.3g
Browse every in-budget product (116)
Finding the Best Protein Powder Under £30
If your budget is £30, you have more good options than you might think. This page shows every protein powder we track whose cheapest in-stock tub comes in at or under £30, ranked by the metric that actually decides value: cost per 25g of real protein. A cheap tub is not a bargain if it is mostly filler, so the ranking normalises price against protein content rather than headline price alone.
At this budget you are mostly looking at whey concentrate in 1kg sizes from the big UK brands, plus the occasional smaller isolate or vegan tub when a sale lands. Use the filters to narrow by brand, size or protein type, and check live discount status before you buy: a £32 tub on a 20% code often beats a £29 one at full price.
We check prices across UK retailers including Myprotein, Bulk, Amazon UK, Holland and Barrett and Protein Works, and every price is read from the retailer’s own page and re-checked daily. The product at the top is the best value under £30 right now, recalculated every time prices move.
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.
It changes with sales and discount codes. The grid above is sorted by cost per 25g of protein, so the product at the top is the best value tub under £30 across the 181+ UK brands we track, every price read from the retailer’s own page and re-checked daily.
Yes. Most 1kg whey concentrate tubs from large UK brands sit under £30, and they often drop further during regular flash sales. The table above only includes products whose cheapest in-stock pack is at or under £30.
Price and quality are not tightly linked. The budget end is mostly whey concentrate from established brands like Myprotein and Bulk, which have consistent quality. We rank by cost per 25g of protein so you can avoid tubs that look cheap but are low in actual protein.
Buy the largest tub your budget allows, compare by cost per 25g of protein rather than per tub, and stack a retailer discount code on top. Whey concentrate gives the most protein per pound; the grid above does the per-serving maths for you.