Protein Bars
Shop protein bars from leading sports nutrition brands, with high-protein snacks available in a range of flavours, textures and nutritional profiles.
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Grenade – Carb Killa High Protein Bars 12 x 60g
£27.00Original price was: £27.00.£25.99Current price is: £25.99.Select options This product has multiple variants. The options may be chosen on the product page14 Flavour Available
Find the right protein bar for you
Protein bars provide a convenient way to add protein to your diet without preparing a shake or meal. Available in a huge range of flavours and textures, they can be useful as an on-the-go snack, something to keep in your gym bag or simply an alternative when you want something sweet with a higher protein content.
Not all protein bars have the same nutritional profile. Protein, calories, carbohydrates, sugars, fats and fibre can vary considerably between products, so the best way to compare them is by looking at the nutrition provided by a complete bar rather than choosing on protein content or flavour alone.
Explore different protein bars
How to compare protein bars
Check protein per bar
Look at the amount of protein in the complete bar rather than only comparing percentages or values per 100g. Bar sizes differ, so protein per bar gives you a clearer idea of what you will actually consume.
Compare calories
Protein bars can vary substantially in calories depending on their size and ingredients. Compare calories per complete bar alongside protein if you are tracking your daily energy intake.
Look at sugars & carbohydrates
Check total carbohydrates and sugars on the nutrition table. Products marketed as protein bars can have very different carbohydrate profiles, particularly across different styles of bar.
Check fibre
Some protein bars provide significant amounts of fibre while others contain considerably less. Compare the stated fibre per bar if this is an important part of what you are looking for.
Consider the protein source
Protein can come from ingredients such as milk protein, whey protein, soy or other sources. Check the ingredient and allergen information if you have particular dietary requirements or preferences.
Compare price per bar
For boxes and multipacks, divide the total price by the number of bars to compare value. It can also be useful to consider the protein provided per bar rather than comparing pack prices alone.
Protein bars vs protein shakes
Protein bars
Protein bars are ready to eat and require no mixing, shaker or liquid. They also provide a different eating experience from a shake and can contain varying amounts of carbohydrates, fats and fibre alongside their protein.
Protein shakes
Protein powders are typically mixed with water or milk and can make it easier to adjust serving size or incorporate additional ingredients. The better option depends on your nutritional requirements, preferences and when you plan to use it.
When might a protein bar be useful?
On the go
Individually wrapped bars are easy to carry and require no preparation, making them a practical option for work, travelling or keeping in your gym bag.
Between meals
A protein bar can provide a convenient snack when you want to add protein between your usual meals. Check the complete nutritional profile to make sure it fits your wider diet.
After training
Protein contributes to the growth and maintenance of muscle mass. A protein bar can provide a convenient source of protein when you prefer solid food to preparing a shake.
A higher-protein sweet option
With chocolate, caramel, cookie and dessert-inspired flavours widely available, protein bars can provide an alternative when you want a sweet snack while also looking for a meaningful amount of protein.
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Protein bar questions
What is a protein bar?
A protein bar is a ready-to-eat snack formulated to provide protein alongside varying amounts of carbohydrates, fats, fibre and other nutrients. Protein content and ingredients differ considerably between brands and individual products.
How much protein is in a protein bar?
There is no standard amount. Protein content varies according to the product and size of the bar, so check the nutrition information for the grams of protein provided by one complete bar.
Are protein bars good for building muscle?
Protein contributes to the growth and maintenance of muscle mass. Protein bars can provide a convenient source of dietary protein, but your overall protein intake, diet and training programme are more important than whether that protein comes specifically from a bar.
Are protein bars healthy?
Protein bars have very different nutritional profiles, so they cannot all be described in the same way. Compare protein, calories, carbohydrates, sugars, fats, fibre and ingredients and consider how the product fits into your overall diet.
Are protein bars low in sugar?
Some are, but not all protein bars are low in sugar. Check the nutrition table for sugars per bar and compare individual products if sugar content is important to you.
What is the difference between a protein bar and an energy bar?
Protein bars are generally formulated with protein as a prominent part of their nutritional profile, while other snack or energy bars may place greater emphasis on carbohydrates or overall energy. Product formulations vary, so comparing the nutrition table is more useful than relying on the product name alone.
Is a protein bar better than a protein shake?
Neither format is automatically better. Protein bars are portable and ready to eat, while protein powders can be mixed into drinks and offer different serving options. Compare protein, calories, ingredients, convenience and your own preferences when choosing between them.
How do I choose a protein bar?
Start by comparing protein and calories per bar, then look at carbohydrates, sugars, fats, fibre, ingredients, allergens, flavour and price. The best choice depends on the nutritional profile and type of snack you are looking for.