Diet Whey Protein
by Bulk
A trusted everyday protein: affordable, versatile, and designed to support your training goals with every shake.
- Up to 39g protein per serving
- For shakes, smoothies, baking and more
Flavour pictures illustrate the taste, not the powder's colour or ingredients.
Best price
In stock£15.99
£3.20 / 100g
Secure retailer checkout
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 60g serving
65g protein
39g per 60g serving - solid protein content
10g carbohydrates
6g per 60g serving - low carb
5g fat
3g per 60g serving - moderate fat
340 kcal
204 kcal per 60g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (60g) |
|---|---|---|
| Protein | 65g | 39g |
| Calories | 340 kcal | 204 kcal |
| Carbohydrates | 10g | 6g |
| Fat | 5g | 3g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£3.20/100g (£15.99 for 500g on 17 Sept 2026)
500g · all flavours · price per pack
- Amazon UKlatest £15.99, lowest £15.99, highest £21.99 in the last 90 days
- Bulklatest £15.99 (one check so far)
Quick answers
Is this right for you?
Who is it for?
Bulk Diet Whey Protein is designed for gym-goers and strength trainers looking for an affordable, everyday protein source. Whey concentrate suits anyone who wants a solid protein boost without paying a premium for ultra-high purity. It works well as a post-workout shake or a between-meals top-up.
What can you expect?
A well-rounded protein powder that mixes easily and tastes good. Whey concentrate typically delivers 70-80% protein content with a natural, creamy texture. You will get a reliable source of all essential amino acids including BCAAs to support muscle recovery after training. With 65g of protein per 100g (around 39g per 60g serving), Bulk Diet Whey Protein sits in a solid mid-range for a whey concentrate product.
What else do you need to know?
Bulk Diet Whey Protein is a whey concentrate protein powder made by Bulk. It comes in 500g, 1kg sizes, and WheyWise tracks prices across 2 UK retailers so you can always find the best deal. Every price on WheyWise is read from the retailer’s own page and re-checked daily and sorted by cost per 100g, so you can see both the cheapest option and how current it is. All links to Amazon and retailer sites are affiliate links - this is how WheyWise stays free.
Frequently asked questions
Where is the cheapest place to buy Bulk Diet Whey Protein in the UK?
We refresh Bulk Diet Whey Protein pricing daily from Amazon UK and show the fetch time next to every figure. If no verified price is showing above, we do not currently hold one we would stand behind, and the buy button will take you to the live listing to check.
How much protein does Diet Whey Protein contain per 100g?
Diet Whey Protein contains 65g of protein per 100g, with 39g per 60g serving. It is a whey concentrate product.
Is Bulk Diet Whey Protein currently in stock?
At the last check, 5 out of 5 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.
Pick your pack
2 sizes · Chocolate · cost per 100g for each
The 500g works out at £3.20 per 100g. The 1kg costs £4.00. Same powder, 1.3x the price per gram.
Where to buy in the UK
Chocolate · 500g · 2 offers for this selection · sorted by cost per 100g
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