Best Protein Bars UK 2024 – Nutrition


Do you need to get your hands some high performance and great value Protein Bars in the coming days? If so, then make sure to check out this review for what we believe are 5 of the best Protein bars that are available in the UK at present which can all be ordered online and delivered to your home hassle free.

Review Work

We have tasted and reviewed over 20 Protein bars and narrowed our list down to our top 5 options which should speed up the process when it comes to your own online research. Many of these Protein bars on our list are made in the UK so it is good to know where they originate from especially when it comes to supporting your own economy and local jobs.

Video Insert: How to make Homemade Protein Bars – Using 4 Ingredients

Read also: Our list of best Weight Loss Shakes here


Protein bars are a type of nutrition bar that are high in protein content and often marketed as a convenient and healthy snack or meal replacement option. These bars typically contain a variety of ingredients such as protein powder, nuts, seeds, and other whole foods.


Protein bars can be useful for individuals who are looking to increase their protein intake, such as athletes or those trying to build muscle. They can also be a convenient on-the-go option for people who are busy and don't have time for a full meal.


One potential benefit of protein bars is that they can help to promote satiety, or the feeling of fullness. This is because protein is a macronutrient that takes longer to digest than carbohydrates or fats, and thus can help to keep you feeling full for longer periods of time.

Health Benefit Claims

However, it's important to note that not all protein bars are created equal. Some can be high in sugar and calories, and may not actually provide the health benefits that they claim. It's important to read the ingredient label and nutrition information before purchasing a protein bar to ensure that it aligns with your dietary goals and needs.

Percentage Protein

The ideal percentage of protein content in protein bars varies depending on the individual's dietary goals and needs. Generally, protein bars that are marketed as meal replacement options tend to have a higher percentage of protein content, while snack bars may have a lower percentage.


A good rule of thumb is to look for protein bars that have at least 10-15 grams of protein per serving. This can help to promote satiety and provide the body with the necessary building blocks for muscle repair and growth.


When it comes to the percentage of protein content, a range of 20-30% is typically considered a good balance. This means that a 200-calorie protein bar should have around 40-60 grams of carbohydrates and 10-20 grams of fat, with 20-30 grams of protein.

Higher vs Lower

However, it's important to note that the ideal percentage of protein content may vary depending on the individual's specific needs and goals. Athletes or individuals looking to build muscle may require a higher percentage of protein content in their protein bars, while those looking for a snack option may prefer a lower percentage.

Protein Quality

In addition to protein content, it's also important to consider the quality of protein used in the protein bar. Look for bars that use high-quality sources of protein such as whey, casein, or plant-based proteins like pea, soy, or brown rice.

Best Protein Bars – 5 Recommendations

Option 1: Grenade Carb Killa High Protein Bar (12 pack)

Protein Bar Overview:

Low Carb Protein Bar - 60g bars x 12 in a pack

Selection box includes multiple flavours

Also, Caramel, chocolate chip, Cookies

Jaffa cake, peanut nutter, fudge brownie

Dark chocolate and white chocolate

Up to 23g protein per bar

Made in West Midlands, UK

Protein Bar Description:

  • Our first recommendation is the Grenade Carb Killa High Protein Bar which comes in a pack of 12 bars with a 60g weight each and it provides up to 23g of protein per bar. Not only do they taste great, they provide a healthy alternative to your average chocolate bar and there is a vast range of flavours to choose from. This particular pack is a selection box which includes various multiple flavours but you can also be more specific in your choice as you can get standalone packs also of just birthday cake, caramel, cookies, dark chocolate mint, chocolate chip, fudge brownie and Jaffa cake to mention just a few.
  • As the range of flavours is so good and the taste quality is superb, these Protein bars have become one of the bestselling protein bars and they will not disappoint you. For the allergy information, these bars include nut traces, milk, eggs, peanuts, sesame seeds, wheat, gluten and soya and the pack size for the 12 bars measures up at 6.5cm by 15cm by 18.5cm.
  • They are made by Grenade who are based in the West Midlands and they can serve you as a snack during the day or as a boost prior to or post training sessions. The Jaffa Cake is certainly one of the more impressive packs in our opinion which still has a delicious taste with all the protein you need and a low calorie carb content.

Price Guide: £20 to £30

Option 2: Amfit Nutrition Low Sugar Protein Bar (12 pack)

Protein Bar Overview:

Chocolate caramel flavour - 12 bars with 60g each

Includes 19.6g protein per bar

Low sugar and calorie content - Healthy snack alternative

Additional flavours available

Blueberry, Fudge, Chocolate mint

Jaffa cake, Cookie & Cream & Peanut

188 calories per bar serving

Protein Bar Description:

  • Our second recommendation is the Amfit Nutrition Protein bar from Amazon and you get great value as well as a fantastic selection of flavours to choose from. This Protein bar is the Chocolate caramel which will not disappoint you and you can also choose other flavours across the range such as Jaffa cake, Blueberry, chocolate fudge, peanut, cookies & cream and chocolate mint – there is a flavour here to meet most people’s tastes and demands.
  • While it can be on sale for less than £20, at certain times of the year it can be seen on sale for less than £15 so there is certainly savings to be made depending on whatever promotional discounts are in place at any given time. There are 12 bars in a pack, the level of protein per serving is 19.6g and a low level of sugar is added with just 1.6g per bar.
  • Each bar snack provides just 188 calories and they serve to give you a more healthy protein alternative without the guilt of indulging in a high calorie standard chocolate bar or snack. There is also less than 19g of carbohydrates per serving as well as 4.5g of fat, 8.4g of fibre and 19.6g of protein as already mentioned.
  • They are not suitable for people who suffer allergies from egg, peanut or nuts and over consumption can lead to a mild laxative effect so you shouldn’t go over your daily allowance as recommended. Overall, this is a high quality protein bar that does exactly as you need at a lower price level than you would expect.

Price Guide: Less than £20

Option 3: Nature Valley Protein Peanut & Chocolate Bar (26 pack)

Protein Bar Overview:

Smaller sized bars of 40g

Includes 26 smaller bars per pack

Box weight is 1.42kg - Tasty Protein cereal bars

No artificial flavourings - No colours or preservatives

Suitable for vegetarians - Ideal snacks for on the go

Includes 20% daily protein needs

Or 10g of protein per bar

Gluten Free snacks

Protein Bar Description:

  • Up next we have the popular Nature Valley Protein Peanut & Chocolate Cereal Bars which come in smaller bar size of 40g but with more bars per pack – a total of 26 servings. This is ideal for people who prefer their purchase to last longer with higher quantities provided and lower individual weights.
  • These protein bars are gluten free which is important to know and the ingredients are 39% roasted peanuts along with 8% chocolate content and whey solids and sunflower oil. For allergy information, it contains nuts, milk and soya and the overall pack weight with the 26 units is 1.42kg
  • The protein content in measured in percentage daily requirements and it provides 10g of protein per serving or 20% of what you need on a daily basis. Not only do they taste fantastic, they are an healthy alternative to snacking and they serve to be an ideal snack food on the go when you are out and about. There is also no preservatives or artificial colours or flavourings and they can be eaten by vegetarians.
  • Included in the wider range is the Protein bars for breakfast, Oat and Honey bars and also a Sweet and Salty Nut Chocolate flavour alternative to give you some variety of flavours types – the Oat and Honey version is particularly good in our opinion. The country of origin for these Protein bars is in Spain and if you like Protein Bars with a great taste and a crunchy bite, then you should definitely try out these Protein bars from Nature Valley

Price Guide: Tends to be less than £20

Final Protein Bar Recommendations

If our top 3 Protein bars haven’t met all of your taste needs just yet or if they are too small, then check out the alternatives summarised briefly as follows that we also recommend that come in Flapjack versions. These are ideal for people who prefer the taste of a Flapjack instead of a bar type Protein snack

Option 4: PhD Nutrition High Protein Flapjack Protein Bars

Brief Summary:

Larger unit size of 75g with 12 pieces per pack

2 flavours available – Peanut butter & Forest Berries

High level of protein with 19g per flapjack

Low sugar level 2g and 37g of carbohydrates

Also provides 25g of fibre per serving

Less than 3g of saturated fat and 270 calories

Price Guide:  Less than £15

Option 5: Trek High Protein Salted Caramel Flapjack

Brief Summary:

Plant based protein flapjack bar snack

Unit weight is 50g with 16 units per pack

Flavoured with Salted Caramel and Gluten free

Multiple other flavours to choose from

Such as Cocoa, lemon, Oat & White Chocolate

Gluten free & Protein content per flapjack is 9g

Price Guide: Less than £15

Video Insert: Tips with making Protein Bars with 5 Ingredients

View also: Review for the best Protein Shakes here


Our completing our review for the best Protein bars in the UK, we hope this short list can help you out in some small way and perhaps give you some ideas to think about. We have included 60g protein bars, 50g Protein flapjacks, larger 75g Protein snacks as well as multiple flavours to choose from so there should be something here that can cater for your own needs.

Which one would we choose? Taking everything into consideration and especially the protein content, it would have to be the Grenade 60g Carb Killa High Protein Bar outlined earlier and further reviews plus updated prices can be double checked below…

Protein Bar Community Education

Have you ever tasted any of these Protein bars or Flapjacks yourself in the past? Anything negative or positive to report?

If possible, feel free to educate others in the wider community by leaving your feedback or opinions in the comment box section provided below…

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