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Protein Bars Comparison - May 2025
6 Best Protein Bars In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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Overview: Finding a protein bar that not only tastes good, but is also nutritious and good for you can be difficult. With so many options on the market, it can be hard to decide which one is best. Read on to learn more about the different types of protein bars available and find the one that fits your needs.
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1
Fulfil
FULFIL Vitamin and Protein Bars (15 x 55 g Bars) — Chocolate Salted Caramel Flavour — 20 g High Protein, 9 Vitamins, Low Sugar
9.8Taste
9.1worth the money
Why we love it
High protein, low sugar content.
Contains 9 essential vitamins.
Delicious chocolate salted caramel flavor.
Main highlights
OUR PACKS CONTAIN 15 BARS: So you never run out of your favourite protein bar.
LIFE'S WONDERFUEL: We want FULFIL bars to fuel you on all of your everyday adventures, whether it’s to get you through your work day, hiking up a mountain, a workout, or a sofa snack we’ve got you covered
HIGH PROTEIN and LOW SUGAR BARS: Each 55g bar contains 20g of protein, less than 3 grams of sugar and only 204 calories. Great for a tasty treat or a post workout refuel
DELICIOUS and NUTRITIOUS: FULFIL bars are not your average protein bar. Our Chocolate Salted Caramel Flavour contains an indulgent milk chocolate coating surrounding a soft, silky salted caramel centre topped with a layer of crispy pieces
9 VITAMINS: Each FULFIL bar contains 30 percent RDA for 9 essential vitamins to support you through everyday life
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9.6
2
Nature Valley
Nature Valley Protein Peanut & Chocolate Gluten Free Cereal Bars, 40 g (Pack of 26 )
9.8Taste
9.4worth the money
Why we love it
High protein and fiber content.
Gluten-free, vegetarian-friendly.
No artificial flavors or preservatives.
Main highlights
Why not also try Nature Valley Crunchy Oats & Dark Chocolate Cereal Bars or Nature Valley Nut Butter Peanut Biscuits?
Packaging may vary
Nature Valley Protein Cereal Bars contain 10g of protein and are high in fibre
Nature Valley Protein Cereal Bars are the perfect on the go gluten free snack for any time of day
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9.3
3
Grenade
38% Off
Grenade OREO White Protein Bar - High Protein, Low Sugar, 12 x 60 g
9.8Taste
8.6worth the money
Main highlights
LOW SUGAR: Low in sugar, with less than 2 g per bar
INFORMED SPORT CERTIFIED: Certified with the Informed Sport Programme and therefore suitable for use by drug tested athletes and military personnel
INDULGENT ON THE GO SNACK: This indulgent low sugar snack is perfect for enjoying at any time of the day as a delicious snack or a post workout treat
HIGH PROTEIN: Packed with protein, with over 20 g per bar
GUILT FREE TREAT: Each triple-layered bar consists of genuine OREO Vanilla, a protein nougat loaded with authentic OREO cocoa, topped with low sugar white chocolate, and topped with zero sugar OREO Pieces
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Popularity
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Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
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9.8 
9.8
1Fulfil
High protein, low sugar content.
