Vegan Soy Protein Black
by Protein Works
Plant-powered performance: a dairy-free protein source that delivers on taste, nutrition, and sustainability.
- Up to 25g protein per serving
- Low fat - under 3g per 100g
- Low carb - suitable for keto and cutting diets
- 100% plant-based and dairy-free
- For shakes, smoothies, baking and more
Flavour pictures illustrate the taste, not the powder's colour or ingredients.
Best price today
In stock£47.99
£1.20 / 100g
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 30g serving
84g protein
25.2g per 30g serving with minimal filler
5g carbohydrates
1.5g per 30g serving - low carb
1g fat
0.4g per 30g serving - very lean
358 kcal
107 kcal per 30g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (30g) |
|---|---|---|
| Protein | 84g | 25.2g |
| Calories | 358 kcal | 107 kcal |
| Carbohydrates | 4.9g | 1.5g |
| Fat | 1.2g | 0.4g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£1.20/100g (£47.99 for 4kg on 16 Sept 2026)
4kg · all flavours · price per pack
- Protein Workslatest £47.99, lowest £47.99, highest £47.99 in the last 90 days
Quick answers
Is this right for you?
Who is it for?
Protein Works Vegan Soy Protein Black is designed for plant-based athletes, vegans, and anyone looking to avoid dairy. It also suits people with lactose intolerance or those who prefer a more sustainable protein source without compromising on their daily protein targets.
What can you expect?
A plant-derived protein that delivers a complete amino acid profile without any animal products. Modern vegan proteins have come a long way in taste and texture. You can expect smooth mixing, solid protein content, and a product free from dairy, lactose, and cholesterol. With 84g of protein per 100g (around 25g per 30g serving), Protein Works Vegan Soy Protein Black sits at the higher end for a vegan product.
What else do you need to know?
Protein Works Vegan Soy Protein Black is a vegan protein powder made by Protein Works. It comes in 500g, 1kg, 2kg, 4kg 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 Protein Works Vegan Soy Protein Black in the UK?
The best price we have verified today is £1.20 per 100g for the 4kg bag, checked 3 Nov 2026. Use the buy button above to go straight to it.
How much protein does Vegan Soy Protein Black contain per 100g?
Vegan Soy Protein Black contains 84g of protein per 100g, with 25.2g per 30g serving. It is a vegan product.
Is Protein Works Vegan Soy Protein Black currently in stock?
At the last check, 14 out of 14 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
4 sizes · Unflavoured · cost per 100g for each
The 4kg works out at £1.20 per 100g. The 500g costs £1.95. Same powder, 1.6x the price per gram.
Where to buy in the UK
Unflavoured · 4kg · 1 offer for this selection · sorted by cost per 100g
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