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Top 10 Protein Bars

Our editors analyse the UK's leading protein bars, evaluating formulation, nutrition, suitability and value. This guide explains the strengths and limitations of each product to help you choose the best match for your goals.

Editor’s quick picks

1
BestsellerLow Sugar
Grenade Oreo White Protein Bar
Grenade

Oreo White Protein Bar

Milk Protein Blend | 20 g Protein | Low Sugar | 12 Bars
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2
VeganLow Sugar
Misfits Plant‑Based Protein Bars Variety Pack
Misfits

Plant‑Based Variety Pack

Vegan Blend | 15 g Protein | 1 g Sugar | 12 Bars
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3
Low Carb
Warrior Raw Protein Flapjack Variety
Warrior

Raw Protein Flapjack

Oat & Whey Blend | 20 g Protein | Low Sugar | 12 Bars
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4
Low CalorieLow Sugar
Fulfil Salted Caramel Protein Bars (15 Pack)
Fulfil

Salted Caramel Bars (15 Pack)

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

Plant‑Based | 9 g Protein | Natural Ingredients | 16 Bars
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6
VeganGluten Free
Nakd Peanut Butter Protein Bars
Nākd

Peanut Butter Protein Bars

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

17 g Protein | No Added Sugar | 12 Bars
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8
VVegetarian
Jubi OBar Variety Classics Bars
Jubi OBar

Variety Classics Bars

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)

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

20 g Protein | Low Sugar | Crunchy White Chocolate | 12 Bars
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Side-by-side comparison

🥇 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 forLow sugarVegan friendlyHigh fibre
View Product →View Product →View Product →

Serving figures and supporting notes are based on published product information at the time of writing. Any value-for-money scores shown are editorial judgements, not customer ratings.

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 →