Top 10 Protein Bars
Discover the UK’s best-selling protein bars — perfect for on-the-go nutrition, workout recovery and convenient snacking. Updated monthly so you can choose with confidence.
- ✅ Updated July 2025
- 🏆 Amazon UK Bestsellers
- 🔎 Evidence‑Based Reviews
Jamie’s Tip: Choose bars with at least 15 g of protein and no more than 5 g of sugar — and watch out for sugar alcohols if you’re sensitive.
See Rankings ↓
4
Low Calorie
Low Sugar
Fulfil
View on Amazon
Salted Caramel Bars (15 Pack)
★★★★★
High Protein | 20 g Protein | Low Sugar | 9 Vitamins | 15 Bars
10
Low Sugar
Warrior
View on Amazon
Crunch White Chocolate Crisp
★★★★★
20 g Protein | Low Sugar | Crunchy White Chocolate | 12 Bars
Best Selling Protein Bars (Compared Side by Side)
| 🥇 Grenade Oreo White | 🥈 Misfits Variety Pack | 🥉 Warrior Raw Flapjack | |
|---|---|---|---|
| Protein (g) | 20 g | 15 g | 20 g |
| Calories | 220 kcal | 190 kcal | 230 kcal |
| Price per bar | £2.50 | Best Value £1.80 | £2.20 |
| Protein Type | Milk Blend | Plant‑Based | Oat Blend |
| Sugar Level | Low | Low | Low |
| Carbs (g) | 23 g | 16 g | 26 g |
| Fibre (g) | 7 g | 8 g | 5 g |
| Servings | 12 | 12 | 12 |
| Protein % | 33% | 27% | 32% |
| Prime | Prime | Prime | Prime |
| Rating | 4.6/5 | 4.5/5 | 4.5/5 |
| Overall | Excellent | Excellent | Excellent |
| Best For | Low Sugar | Vegan Friendly | High Fibre |
| View Product → | View Product → | View Product → |
FAQs
Are protein bars healthy meal replacements?
Protein bars can bridge gaps in your diet, but they shouldn’t replace whole foods entirely. Use them as a convenient snack or post‑workout option.
How much sugar is in protein bars?
It varies by brand; aim for bars with less than 5 g sugar and check for sugar alcohols if you’re sensitive.
Can I eat protein bars daily?
Yes, but monitor your total calorie and nutrient intake to ensure bars complement your diet rather than replace balanced meals.
What’s the best time to eat a protein bar?
Enjoy one between meals or after exercise to refuel and support muscle recovery.
Looking for more shake‑based protein? Discover our Top 10 Whey Powders list for high‑quality macro nutrition.
See Top 10 Whey Powders →