Impact Soy Protein
by MyProtein
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
In stock£63.99
£1.28 / 100g
Secure retailer checkout
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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
2g carbohydrates
Extremely low carbs - suitable for keto and low-carb diets
1g fat
0.3g 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 | 358.27 kcal | 107 kcal |
| Carbohydrates | 1.6g | 0.5g |
| Fat | 0.9g | 0.3g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£1.28/100g (£63.99 for 5kg on 28 Sept 2026)
5kg · all flavours · price per pack
- MyProteinlatest £67.49, lowest £63.99, highest £92.49 in the last 90 days
Quick answers
Is this right for you?
Who is it for?
MyProtein Impact Soy Protein 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), MyProtein Impact Soy Protein sits at the higher end for a vegan product.
What else do you need to know?
MyProtein Impact Soy Protein is a vegan protein powder made by MyProtein. It comes in 450g, 500g, 900g, 1kg, 2.5kg, 2.7kg, 5kg 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 MyProtein Impact Soy Protein in the UK?
We refresh MyProtein Impact Soy 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 Impact Soy Protein contain per 100g?
Impact Soy Protein contains 84g of protein per 100g, with 25.2g per 30g serving. It is a vegan product.
Is MyProtein Impact Soy Protein currently in stock?
At the last check, 50 out of 51 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
7 sizes · Iced Latte · cost per 100g for each
The 5kg works out at £1.28 per 100g. The 450g costs £2.00. Same powder, 1.6x the price per gram.
Where to buy in the UK
Iced Latte · 5kg · 1 offer for this selection · sorted by cost per 100g
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