Looking for the best unflavoured protein powder to support your health and fitness goals without unnecessary additives? In this guide, we’ve reviewed the top-rated, budget-friendly, and cleanest protein supplements available in the UK. Whether you’re a gym-goer aiming to build muscle, a busy professional looking for a clean nutritional boost, or someone following a plant-based diet, we’ve compared the best options to help you make an informed choice. From premium whey isolates to organic vegan blends, these unflavoured protein powders deliver quality, value, and versatility—without compromising on performance.
Best Plant-Based Option:
Boho Organic Vegan Protein Blend (Unflavoured)
£30
/1 kg
Includes:
✓
Protein per serving: 20g
✓
Type: Plant-Based (Pea, Brown Rice, Chia)
✓
Certified organic, dairy-free, gluten-free, and soy-free
Best Overall:
Optimum Nutrition Gold Standard 100% Whey (Unflavoured)
£35
/2.25kg
Includes:
✓
Protein per serving: 24
✓
Calories per serving: 120
✓
Type: Whey Protein Blend (Isolate & Concentrate)
✓
Contains naturally occurring BCAAs and glutamine
Best Budget Choice:
MyProtein Impact Whey Protein (Unflavoured)
£8.64
/500g
Includes:
✓
Protein per serving: 21g
✓
Calories per serving: 103
✓
Type: Whey Protein Concentrate
✓
Suitable for vegetarians
Best for Purity:
Naked Nutrition Naked Whey (Unflavoured)
£60
/900g
Includes:
✓
Protein per serving: 25g
✓
Calories per serving: 120
✓
Type: 100% Grass-Fed Whey Protein
✓
Sourced from grass-fed cows