What should you compare?
Start with the whole-bar serving, then weigh its protein amount against the ingredients and nutrition information that matter to you.
| Priority | What to check | Your needs |
| Calories per bar |
Check the bar’s weight and its full-serving kcal figure, not just values per 100g. Myprotein lists Lean Layered at fewer than 140 kcal per bar; Barebells lists Cookies & Cream at 190 kcal per 55g bar. |
I want to know what one complete bar adds to my Bonfire Night snacks. |
| Protein amount |
Compare protein alongside whole-bar calories. Myprotein states 15g protein for Lean Layered and 20g for the cited 60g Layered bar, which its nutrition table lists at 212 kcal; Barebells lists 20g at 190 kcal for Cookies & Cream. |
If 15g protein suits this snack, I may favour the lighter cited option; if I want 20g, I can compare the calories of the exact flavours. |
| Nutrition claims |
Read sugars and saturated fat alongside energy. PhD lists 1g sugar but 238 calories for its White Choc Blondie Smart Bar, so its sugar figure does not answer the calorie question. |
A low-sugar claim catches my eye, but I still want to check the full nutrition panel. |
| Ingredients and suitability |
Check the exact pack’s allergens, precautionary statements, sweeteners and dietary-suitability wording. Barebells lists milk proteins and possible cross-contact allergens for Cookies & Cream; Myprotein states that its cited Lean Layered bar is not suitable for vegetarians. |
Before taking a bar to an outdoor event, I need to know whether that particular flavour’s ingredients suit me. |
Brand and retailer references
These references describe cited products and ranges, not every bar made or stocked by each name.
Myprotein
Its cited Lean Layered and Layered bars offer different whole-bar calorie and protein figures.
- Myprotein lists fewer than 140 kcal and 15g protein for Lean Layered, versus 212 kcal and 20g protein for the cited 60g Layered bar.
- The cited pages state that these bars are not suitable for vegetarians and warn of possible laxative effects with excessive consumption. Layered nutrition can vary by flavour.
Barebells
The cited Cookies & Cream bar is a 55g option for comparing a 20g protein serving with its calorie total.
- Barebells lists 190 kcal, 20g protein and 1.4g sugars per Cookies & Cream bar.
- That flavour contains milk proteins and carries precautionary allergen information and a warning about laxative effects from excessive consumption.
PhD
The cited White Choc Blondie Smart Bar illustrates why a low sugar figure and a calorie figure need separate checks.
- PhD lists 21g protein and 1g sugar for this bar.
- The same product page lists 238 calories, so check its whole-bar energy if calories drive your choice.
Grenade
Tesco Groceries lists several 60g Grenade Carb Killa flavours in its UK protein-bar category.
- Action on Sugar’s November 2025 snack-bar report identified Grenade Dark Chocolate Mint as containing less than 1g sugars per serving in its survey.
- That sugar figure does not establish the current calorie content of another Grenade flavour; check the pack you intend to buy.
Quest
Quest describes its original protein-bar range as containing up to 21g protein per bar and using sugar alcohols.
- Quest describes the original range as gluten-free.
- For a UK purchase, check the exact seller, pack and nutrition information rather than applying range-level statements to an unspecified flavour.
Tesco
Tesco is a retailer reference for comparing listed protein-bar brands, not a protein-bar manufacturer in this selection.
- Its UK protein-bar category lists Grenade and Barebells products.
- Check the listing for your delivery area and the exact pack before relying on a particular flavour being available.
Joybuy protein bar options
These Grenade multipacks are options for taking a protein bar to Bonfire Night. Compare the nutrition and ingredients of each exact flavour before choosing: the pack size and product name alone do not establish which has fewer calories per bar.
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Grenade Soft Core Double Chocolate Protein Bar, 12 x 50g
A multipack of 50g bars for a portable snack. Check the Double Chocolate pack’s calories per bar, protein and allergens before choosing it for the evening.
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Grenade Soft Core Golden Caramel Protein Bar, 12 x 50g
Another 12-pack of 50g Soft Core bars, in Golden Caramel flavour. Compare this flavour’s whole-bar nutrition and ingredient list rather than assuming it matches Double Chocolate.
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Grenade Soft Core Peanut Butter Protein Bar, 12 x 50g
This Peanut Butter flavour comes as 12 x 50g bars. Its name is not a substitute for an allergen declaration: check the exact pack’s ingredients and precautionary statement, as well as calories per bar.
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Grenade Oreo Flavour Protein Bar, 4 x 60g
This Oreo Flavour pack contains four 60g bars. Because these bars are a different size from the Soft Core options above, compare calories and protein for one complete bar before deciding between them.
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Common questions
How do I compare protein bars for a lighter Bonfire Night snack?
Compare kcal for one whole bar, then check whether its protein amount and ingredients suit what you want from the snack. Myprotein lists Lean Layered at fewer than 140 kcal and 15g protein per bar; the cited PhD White Choc Blondie Smart Bar page lists 238 calories and 21g protein. These are product figures, not a universal definition of low calorie.
Does low sugar mean a protein bar is low in calories?
No. PhD lists 1g sugar and 238 calories for its White Choc Blondie Smart Bar. Read the calorie figure for the whole bar rather than treating a sugar claim as its equivalent.
Can I treat a protein bar as a meal replacement?
Do not assume that a product presented as a snack is intended to replace a meal. Check the exact product’s labelling and intended use rather than deciding from its protein figure alone.
What should I check if allergens matter to me?
Read the exact pack’s ingredient declaration and any precautionary allergen statement. Barebells lists milk proteins and possible cross-contact with cereals containing gluten, soya, peanuts and nuts for its Cookies & Cream bar; another flavour may have different information.
Why do some protein bars carry a laxative-effect warning?
The cited Myprotein and Barebells product pages warn that excessive consumption may have laxative effects; Barebells’ Cookies & Cream bar contains the sweetener maltitol. Check the ingredients and on-pack warning for the particular bar you plan to eat.