Natural Pure Whey Protein, Chocolate, 2.5 kg
£89.99 for 2.5 kg at Bulk. That works out at £1.23 per 25 g protein, which ranks it 65th of the 160 whey protein concentrate products we price across 8 UK retailers.
At one 25 g dose a day, this pack lasts 2 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 2500 ÷ 30 per serving = 83.3
- In the pack: 83.3 × 22 g = 1,833.3 g
- £89.99 ÷ 1,833.3 g × 25 g = £1.23 per 25 g protein
- A week £1.23 × 7 = £8.59 · a month × 30 = £36.81 · a year × 365 = £447.90
- Amount per serving: stated on the label.
The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.
Cheaper whey protein concentrate
All 160, ranked →
Switching to the Bulk pack saves £1.02 a month at the same 25 g dose.
Ranked purely by price per 25 g protein. 54 combination products also contain protein powder.
On the label
- Protein powder · Whey concentrate
- 22 g per serving (stated on the label)
- Pack
- 2.5 kg · 83.3 servings · 30 g a serving
- Cost per serving
- £1.08 (83.3 servings in the pack)
More label details
- Barcode
- 5060343749368
- Sold by
- Bulk
- What the listing says
- “2.5kg” · “per serving (30g)” · “[Protein ; 75g ; 22g]”
Ingredients
Whey Protein Concentrate (Milk), Natural Flavouring.
From the Bulk listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 25 g dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 30 g.
What you paid
Optional. At Bulk today: £89.99.
“Order by” allows 3 working days’ delivery from Bulk and your spare days.
Price history
2 price changes since 20 September 2026. Checked on 22 days, most recently 20 October 2026.
- Lowest recorded
- £84.9923 Sept
- Highest recorded
- £89.995 Oct
- First recorded
- £89.9920 Sept
- Checked on
- 22 dayssince 20 Sept
- Up at Bulk: £84.99 → £89.99 (+5.9%)
- Down at Bulk: £89.99 → £84.99 (−5.6%)
- Back in stock at Bulk
1 earlier entry
- First checked at Bulk: £89.99
Questions about this product
How much does Bulk Natural Pure Whey Protein cost per 25 g protein?
£1.23 per 25 g protein, from £89.99 for 2.5 kg at Bulk, checked on 20 October 2026.
Is it the cheapest whey protein concentrate in the UK?
No, it is 65th of 160. 100% Protein at Protein Works works out at 59p per 25 g protein.
How long does one pack last?
2 months at one 25 g dose. The pack holds 1,833.3 g in total.
About Bulk
Founded 2006 · Colchester, England
Bulk is a British sports nutrition company based in Colchester, Essex. Adam Rossiter and Elliot Dawes, who met at the University of Essex, started it in 2006 as Bulk Powders; it was renamed Bulk at the start of 2021, and the founders remain its majority owners.
All 133 Bulk products, priced per doseVisit Bulk (opens in a new tab)
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