Protein bars are hailed for their convenience and nutritional benefits, especially for individuals with active
lifestyles or those needing a quick, nutrient-dense snack.
They often contain a significant amount of protein, which is crucial for muscle repair, recovery, and growth,
making them an excellent post-workout snack.
Protein bars can also aid in weight management by promoting satiety, reducing the likelihood of overeating by keeping you fuller for longer. However, it's important to choose bars with low added sugar and high-quality ingredients to maximise health benefits.
Our Top Protein Bars of 2025
See the benefits, what to look for and what to avoid with our expert comparison.
Did you know?
Protein exists in every single cell of the human body. It is a critical nutrient
playing a vital role in maintaining and repairing the body's tissues, cells, and organs. It's essential
for the growth and repair of muscle tissue, which is particularly important for adults as muscle
mass naturally decreases with age. Adequate protein intake supports a healthy immune system,
aids in weight management by promoting satiety and lean muscle mass, and can prevent or
mitigate the impact of age-related conditions.
A good quality protein bar can elevate your athletic performance, support muscle growth, and even boost cognitive functions. However, not all protein bars are created equal and we break down below what to look for and our Top 5 Protein Bars.
How Protein Bars Can Help?
Benefits of High Quality Protein Bars
Protein is an essential macronutrient with numerous benefits for health and well-being, such as:
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Repair & Growth of Muscles
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Weight Loss Support
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Immunity Boosting
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Supporting Bone Density
What To Look For?
Protein Bars are NOT all the same. It’s important to choose quality, proven formulas from trusted brands to see real benefits.
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20g+ of Protein
We recommend looking for a protein bar that contains around 20g of protein. This will ensure
you see the positive benefits of additional protein intake and will help make you feel fuller for
longer. In addition, this protein should ideally come from diverse sources such as soy and whey as
opposed to a singular type.
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Low Sugar
It is essential to ensure that your protein bar does not contain a lot of sugar, as otherwise it will
undo the health benefits of the protein itself. Experts recommend a protein bar with less than 2g
of sugar per bar.
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Low Calories
Having a high calorie snack on a regular basis could lead to weight gain and negate some of the
benefits of the protein. We recommend going for a bar that stays under 200 calories, as this will
help support you on your weight goals while still providing a potent dose of protein.
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Money-Back Guarantee
Protein bars come in many different textures, flavours and tastes. While it is rare, we do recommend looking for a protein bar that offers a money back guarantee in case you do not like the taste.
What Should I Avoid?
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Foreign Manufacturing
When it comes to protein bars, we recommend sticking with those Made & Manufactured In The UK. This ensures that there is transparency and quality controls in the formulation and ensures you get what you are paying for.
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Artificial Reviews
Watch out for product listings on Amazon and other marketplaces with fake reviews. When it comes to supplements, you are safer buying directly from trusted brands who are based in the UK. Buying from marketplaces or middle men companies gives you no guarantee when things go wrong.
1. High Protein Bars [ 1 ]
by Bettervits
Sponsored 
This is a sponsored recommendation by our preferred partner.
A+
OVERALL GRADE
TOTAL RANKING
Pros
-
20g+ of Protein
-
Less Than 200 Calories
-
~1.7g of Sugar
-
Vegetarian Friendly
-
Voted #1 in Taste & Texture
-
Multiple Flavors
-
Made in UK
-
60 Day Money-Back Guarantee
Cons
-
Only Available Online Only Available Online
-
Sometimes Out of Stock
The Bottom Line
Ranked number 1 are these
High Protein, Low Sugar bars by Bettervits. They come in 2
flavours, Chocolate Brownie and Salted Caramel. They contain a potent 20.3g and 20.9g of
protein, respectively. Equally as important, they are low in sugar and calories which makes it an
ideal all-round choice for protein bars.
Whether you are looking to bulk up, lose weight, or simply gain some additional protein, the
nutritional profile of these bars should be able to support your goals. The protein content of just 1
bar is almost 33% of the daily recommended intake for most adults.
In addition to the above, it is made with natural flavorings and sweeteners, so there are no
artificial sugars which can inflict more harm than good. Specifically, they have used Stevia as their
choice of sweetener, which is a 100% natural, zero calorie alternative to sugar and is an
excellent choice as it does not impact blood sugar levels. This makes their protein bar even
suitable for diabetics and those on a very low calorie diet.
Customer reviews are positive with the majority touting the excellent flavour profile and taste of
the bars.
Bettervits has become one of the biggest names when it comes nutrition in the UK.
They manufacture everything in the UK and their protein bars come with a 60 Day “Taste
Guarantee”, so if you don’t like them, you can return it for a full refund.
We found one coupon code for this product:
PRO10 for 10% off
2. Protein Bar
by Barebells
B+
OVERALL GRADE
TOTAL RANKING
Pros
-
2.1g Sugar
-
205 Calories
-
Multiple Flavours
Cons
-
Uses Sucralose
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Low in Protein (16g)
-
No Multipack Discounts
-
No Money Back Guarantee
The Bottom Line
Barebell is a popular protein bar brand in the UK, but their nutritional profile does fall short of
market-leading. While they have tried to keep their calories lower, it still exceeds 200 calories at
however fall short on a couple of attributes.
205 for most of their bars.
More importantly, their protein content is quite low at 16g, whereas market-leading products are
however fall short on a couple of attributes.
able to achieve 20g+ protein with the same calorie content.
Further to this, there is no money back guarantee, which is important when it comes to protein
bars due to the variance in taste preference from person to person.
We found one coupon code for this product:
PRO10 for 10% off
3. Protein Bar
by Optimum Nutrition
C
OVERALL GRADE
TOTAL RANKING
Pros
-
20g of Protein
-
1.8g of Sugar
-
Vegetarian Friendly
Cons
-
High in Calories (213kcal)
-
Poor Taste Reviews
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Less Value For Money
-
No Money Back Guarantee
The Bottom Line
Another popular brand, Optimum Nutrition has their own collection of protein bars. Their bars
come with 20g of protein and 1.8g of sugar, which is in line with recommendations. However, their
calories contain a high amount of calories, clocking in at 213 calories per bar.
Furthermore, they sell boxes of 10 for around the same cost as a box of 12 from other brands,
who have similar nutritional quality and are in fact lower calories. This makes it poorer value for
money in our view.
Finally, there is no money back guarantee so we recommend it only if you don’t mind what the
protein bar tastes like.
We found one coupon code for this product:
PRO10 for 10% off
4. Protein Bars
by Fulfil
D
OVERALL GRADE
TOTAL RANKING
Pros
-
Includes Vitamins
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Vegetarian Friendly
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< 2g of Sugar
Cons
-
Low Protein Content (15g)
-
Small Sized Bar
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Uses Maltitol Sweetener
-
No Money Back Guarantee
The Bottom Line
Fulfil protein bars come in a wide variety of flavours - we tested the Chocolate Salted Caramel
flavor. In terms of nutrition content, it comes in low at just 15g of protein but it does contain less
than 2g of sugar.
It is important to note however, that these bar sizes are smaller than average, therefore the
calories and sugar are a bit misleading. They are just 40g bars whereas most protein bars are
~60g. This may mean that for the quantity of sugar and calories, you may not feel as full from this
bar as comparable products.
Lastly, it is on the pricier side, which when combined with the lack of money back guarantee and
the low protein content has placed it lower on our ranking.
We found one coupon code for this product:
PRO10 for 10% off
5. Protein Flapjacks
by Trek
D-
OVERALL GRADE
TOTAL RANKING
Pros
-
Plant-Based
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Vegan Friendly
Cons
-
Low Protein (9g)
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High in Calories (227kcal)
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High in Sugar (14g)
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No Money Back Guarantee
The Bottom Line
An option for those on a plant-based or vegan diet are these protein flapjacks by Trek. While the
nutritional content is much lower due to it being plant-based, at just 9g protein, they do have
good reviews for taste.
Unfortunately however, it is high in sugar and calories, clocking in at a whopping 14g of sugar and
227 calories. This is likely due to the limitation of plant-based protein bars but is a good option if
you are restricted by your diet.
It does not come with a money back guarantee but there are positive reviews in regards to the
taste and texture of the bar.
We found one coupon code for this product:
PRO10 for 10% off
2025's Top Protein Bar
Overall, we highly recommend Bettervits Protein Bar and have chosen it as #1 based on a strict, scientific review of it's ingredients, formula, doses as well as the brand's ethics and customer satisfaction. 60 Day Return Policy
MADE
IN THE UK
FREE
SHIPPING
MONEY-BACK
Guarantee
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