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Top 10 Protein Bars

Protein bars offer convenient on-the-go nutrition. These are some of the best-selling bars on Amazon, featured for their taste, macros, and customer reviews.

  • ✅ Updated September 2025
  • 🏆 Best-Selling
  • 📝 Editorial Reviews & Comparisons
Jamie’s Tip: Check protein-to-sugar ratios — bars vary widely even within the same brand.
See Rankings ↓
1
Bestseller Low Sugar
Grenade Oreo White Protein Bar
Grenade

Oreo White Protein Bar

4.6 / 5 (6,845 reviews)
Milk Protein Blend | 20 g Protein | Low Sugar | 12 Bars
View on Amazon
2
Vegan Low Sugar
Misfits Plant‑Based Protein Bars Variety Pack
Misfits

Plant‑Based Variety Pack

4.5 / 5 (3,230 reviews)
Vegan Blend | 15 g Protein | 1 g Sugar | 12 Bars
View on Amazon
3
Low Carb
Warrior Raw Protein Flapjack Variety
Warrior

Raw Protein Flapjack

4.5 / 5 (2,970 reviews)
Oat & Whey Blend | 20 g Protein | Low Sugar | 12 Bars
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4
Low Calorie Low Sugar
Fulfil Salted Caramel Protein Bars (15 Pack)
Fulfil

Salted Caramel Bars (15 Pack)

4.5 / 5 (4,112 reviews)
High Protein | 20 g Protein | Low Sugar | 9 Vitamins | 15 Bars
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5
Vegan
TREK Cocoa Oat Protein Flapjacks
TREK

Cocoa Oat Protein Flapjacks

4.4 / 5 (1,982 reviews)
Plant‑Based | 9 g Protein | Natural Ingredients | 16 Bars
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6
Vegan Gluten Free
Nakd Peanut Butter Protein Bars
Nākd

Peanut Butter Protein Bars

4.4 / 5 (1,450 reviews)
Plant Protein | 9 g Protein | Peanut Butter Flavour | 16 Bars
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7
Low Sugar
Barebells Marshmallow Rocky Road Bars
Barebells

Marshmallow Rocky Road Bars

4.5 / 5 (2,210 reviews)
17 g Protein | No Added Sugar | 12 Bars
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8
VVegetarian
Jubi OBar Variety Classics Bars
Jubi OBar

Variety Classics Bars

4.3 / 5 (890 reviews)
10 g Protein | 99 kcal | Gluten Free | 12 Bars
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9
Low Sugar
Fulfil Chocolate Salted Caramel Bars (40 g)
Fulfil

Chocolate Salted Caramel (40 g)

4.4 / 5 (1,130 reviews)
15 g Protein | 1.4 g Sugar | 9 Vitamins | 40 g Bars
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10
Low Sugar
Warrior Crunch White Chocolate Crisp Bars
Warrior

Crunch White Chocolate Crisp

4.3 / 5 (1,040 reviews)
20 g Protein | Low Sugar | Crunchy White Chocolate | 12 Bars
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Top Selling Protein Bars (Compared Side by Side)

🥇 Grenade Oreo White 🥈 Misfits Variety Pack 🥉 Warrior Raw Flapjack
Protein (g)20 g15 g20 g
Calories231 kcal190 kcal247 kcal
Protein TypeMilk BlendPlant‑BasedOat Blend
Sugar LevelLowLowLow
Carbs LevelMediumLowHigh
Fat LevelMediumMediumLow
Fibre LevelLowHighHigh
Servings121212
ExtrasOreo flavour & crunchy layersVariety pack (flavour mix)White chocolate & cranberry, low sugar, high fibre
Value for money3.4/53.2/5Best Value 4.3/5
OverallExcellentExcellentExcellent
Best for Low sugar Vegan friendly High fibre
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For general comparison purposes, amounts and servings are approximate and taken from product labels. All “Value for Money” scores and ratings shown are editorial opinions based on the author’s independent assessment and do not reflect Amazon customer ratings. Macro levels (Low/Medium/High) are simplified for ease of comparison. Information is for general purposes only.

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.

How much sugar is in protein bars?

It varies by brand; aim for bars with lower sugar and check for sugar alcohols if you’re sensitive.

Can I eat protein bars daily?

Yes, but monitor your overall 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 as part of your routine.

Looking for more shake‑based protein? Discover our Top 10 Whey Powders list for high‑quality macro nutrition.

See Top 10 Whey Powders →