
Soy Protein Isolate 90%
by Peak Supps
Plant-powered performance: a dairy-free protein source that delivers on taste, nutrition, and sustainability.
- Up to 27g 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
Best price today
In stockPeak Supps
Verified retailer
Cheapest today · 5kg · Unflavoured
£44.99
£0.90 / 100g
You save £4.00vs highest retailer
Secure retailer checkout
Price checked this weekCompared across 1 retailer12 in stock
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Nutritional profile
What's inside
Values per 100g
91g protein
27.3g per 30g serving with minimal filler
1g carbohydrates
Extremely low carbs — suitable for keto and low-carb diets

2g fat
0.6g per 30g serving — very lean
370 kcal
111 kcal per 30g serving
91g protein
27.3g per 30g serving with minimal filler
1g carbohydrates
Extremely low carbs — suitable for keto and low-carb diets
2g fat
0.6g per 30g serving — very lean
370 kcal
111 kcal per 30g serving

Frequently asked questions
Where is the cheapest place to buy Peak Supps Soy Protein Isolate 90% in the UK?
Based on today's prices, Peak Supps is the cheapest at £0.90 per 100g for the 5kg bag. WheyWise checks prices weekly across 1 UK retailer stocking this product.
How much protein does Soy Protein Isolate 90% contain per 100g?
Soy Protein Isolate 90% contains 91g of protein per 100g, with 27.3g per 30g serving. It is a vegan product.
Is Peak Supps Soy Protein Isolate 90% currently in stock?
As of today, 12 out of 19 tracked variants are in stock. Stock status is updated weekly.

