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Protein Bars Comparison - February 2026
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. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
Advertising Disclosure
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.
Grenade High Protein, Low Sugar Bar - Chocolate Chip Salted Caramel, 12 x 60 g
Model
FULFIL Vitamin and Protein Bars (15 x 55 g Bars) — Chocolate Salted Caramel Flavour — 20 g High Protein, 9 Vitamins, Low Sugar
Model
Nature Valley Protein Peanut & Chocolate Gluten Free Cereal Bars 26 x 40g
Model
Grenade OREO White Protein Bar - High Protein, Low Sugar, 12 x 60 g
Model
Warrior Raw Protein Bars – 12 x 75g High Protein Snack – High Fibre, Low Sugar – Ideal Meal Replacement or Healthy Nutrition Energy Snacks - Oat Bar Flapjacks – UK Made (Variety Box)
Model
Grenade OREO Protein Bar - High Protein, Low Sugar, 12 x 60 g
Brand
Grenade
Brand
Fulfil
Brand
Nature Valley
Brand
Grenade
Brand
Warrior
Brand
Grenade
Reviews
8,344 reviews
Reviews
4,512 reviews
Reviews
12,492 reviews
Reviews
788 reviews
Reviews
13,708 reviews
Reviews
660 reviews
Features
Taste
9.6
Taste
9.8
Taste
9.8
Taste
9.8
Taste
9.3
Taste
9.1
Worth the money
8.9
Worth the money
9.1
Worth the money
9.4
Worth the money
8.6
Worth the money
7.9
Worth the money
7.6
Tech Specs
Age range description
Adult
Age range description
-
Age range description
Adult
Age range description
-
Age range description
-
Age range description
-
Allergen Information
Contains: Eggs, Milk, Tree Nuts, Soy, Cereals containing Gluten
Allergen Information
Contains: Soy, Milk, Barley, Egg may contain, Tree nuts may contain, Peanuts may contain
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1
Grenade
Grenade High Protein, Low Sugar Bar - Chocolate Chip Salted Caramel, 12 x 60 g
9.6Taste
8.9worth the money
Why we love it
Packed with protein
Low in sugar
Delicious triple layered treat
Main highlights
ON THE GO SNACK: Our individually wrapped bars are a convenient, guilt-free energy boost for busy days, travel, or quick bites between meetings that keeps you going until your next meal
NO COMPROMISE ON TASTE: Each triple-layered bar consists of a soft protein nougat, topped with a tasty salted caramel layer and coated in smooth milk chocolate with chocolate chips
INFORMED SPORT CERTIFIED: Certified with the Informed Sport Programme and therefore suitable for use by drug tested athletes and military personnel
HIGH PROTEIN, LOW SUGAR: Each bar is packed with over 20g of protein and contains just 1.4g of sugar
FUEL YOUR WORKOUT: Made with high-quality protein, supports muscle growth, recovery & helps you reach your fitness goals - ready to eat pre, post or during workouts
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9.7
2
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
Each bar contains 20g of protein, making it a great post workout snack.
It has 9 essential vitamins to support you through everyday life.
The Chocolate Salted Caramel flavor is delicious and indulgent.
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
3
Nature Valley
Nature Valley Protein Peanut & Chocolate Gluten Free Cereal Bars 26 x 40g
9.8Taste
9.4worth the money
Why we love it
A protein snack bar is a healthy and nutritious snack option.
The Nature Valley protein cereal bar is high in protein and fibre, and is gluten free.
The cereal bar is also suitable for vegetarians and is made with carefully selected ingredients.
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
Show more
Our ranking system
The topchoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria. We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. topchoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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.
Advertising Disclosure
9.6 
9.7
2Fulfil
Each bar contains 20g of protein, making it a great post workout snack.
