Cheapest protein powder in United Kingdom
12 powders from 6 stores, ranked by price per kg of protein (not per kg of powder). Updated 7 Nov 2026
Cheapest today: XL Nutrition XTRA Whey 2kg at Discount Supplements: £39.99 for 2 kgat 70% protein = £29 per kg of protein.
Typical (median) cost: whey isolate £62/kg protein · whey concentrate & blends £29/kg protein · plant £65/kg protein.
| # | Product | £ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | XL NutritionXTRA Whey 2kg | £29£0.86 per 30 g protein | £39.992 kg | 70%label | View XL Nutrition XTRA Whey 2kg at Discount Supplements |
| 2 | XL NutritionXTRA Whey 2kg | £29£0.86 per 30 g protein | £39.992 kg | 70%label | View XL Nutrition XTRA Whey 2kg at Discount Supplements |
| 3 | Applied NutritionEssential Protein Powder 1.6kg | £36£1.07 per 30 g protein | £39.951.6 kg | 70%label | View Applied Nutrition Essential Protein Powder 1.6kg at Discount Supplements |
| 4 | Applied NutritionEssential Protein Powder 1.6kg | £36£1.07 per 30 g protein | £39.951.6 kg | 70%label | View Applied Nutrition Essential Protein Powder 1.6kg at Discount Supplements |
| 5 | EFECTIV NutritionGrass Fed Whey Protein Isolate - 66 Servings - EFECTIV® | £36£1.08 per 30 g protein | £64.992 kg | 90%label | View EFECTIV Nutrition Grass Fed Whey Protein Isolate - 66 Servings - EFECTIV® at EFECTIV Nutrition |
| 6 | Per4m NutritionAdvanced Protein Blend 1.8kg | £38£1.14 per 30 g protein | £47.951.8 kg | 70%label | View Per4m Nutrition Advanced Protein Blend 1.8kg at Discount Supplements |
| 7 | Per4m NutritionAdvanced Protein Blend 1.8kg | £38£1.14 per 30 g protein | £47.951.8 kg | 70%label | View Per4m Nutrition Advanced Protein Blend 1.8kg at Discount Supplements |
| 8 | Applied Nutrition LtdDiet Whey Protein | £38£1.14 per 30 g protein | £54.951.8 kg | 80%label | View Applied Nutrition Ltd Diet Whey Protein at Applied Nutrition plc |
| 9 | Bio-Synergy®Lean & Green® | £53£1.58 per 30 g protein | £34.99908 g | 73%label | View Bio-Synergy® Lean & Green® at Bio-Synergy |
| 10 | EFECTIV NutritionEFECTIV® Clear Whey Protein Isolate | £62£1.87 per 30 g protein | £29.99600 g | 80%label | View EFECTIV Nutrition EFECTIV® Clear Whey Protein Isolate at EFECTIV Nutrition |
| 11 | Protein RebelAccelerate — Vegan Protein Powder, Vanilla | £65£1.96 per 30 g protein | £29.99600 g | 77%label | View Protein Rebel Accelerate — Vegan Protein Powder, Vanilla at Protein Rebel UK |
| 12 | Supplement NeedsVegan Iso+ - 1kg | £66£1.99 per 30 g protein | £39.991 kg | 60%label | View Supplement Needs Vegan Iso+ - 1kg at Supplement Needs |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
Cheapest whey isolate in United Kingdom
| # | Product | £ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | EFECTIV NutritionGrass Fed Whey Protein Isolate - 66 Servings - EFECTIV® | £36£1.08 per 30 g protein | £64.992 kg | 90%label | View EFECTIV Nutrition Grass Fed Whey Protein Isolate - 66 Servings - EFECTIV® at EFECTIV Nutrition |
| 2 | EFECTIV NutritionEFECTIV® Clear Whey Protein Isolate | £62£1.87 per 30 g protein | £29.99600 g | 80%label | View EFECTIV Nutrition EFECTIV® Clear Whey Protein Isolate at EFECTIV Nutrition |
| 3 | Supplement NeedsVegan Iso+ - 1kg | £66£1.99 per 30 g protein | £39.991 kg | 60%label | View Supplement Needs Vegan Iso+ - 1kg at Supplement Needs |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
Cheapest plant protein in United Kingdom
| # | Product | £ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | Protein RebelAccelerate — Vegan Protein Powder, Vanilla | £65£1.96 per 30 g protein | £29.99600 g | 77%label | View Protein Rebel Accelerate — Vegan Protein Powder, Vanilla at Protein Rebel UK |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
Stores we check in United Kingdom
Applied Nutrition plc · Bio-Synergy · Discount Supplements · EFECTIV Nutrition · Protein Rebel UK · Supplement Needs. Missing a store? We add new ones every week; big retailers that block automated price checks are left out rather than estimated.
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- Cheapest vegan & plant protein powder
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