Busy snack planners
If you carry a bar for work, commuting or a training day, compare protein and energy per individual bar. Bars in similarly sized wrappers need not have identical nutrition.
Who is choosing a protein bar?
Plant-based shoppers
Look for an explicit vegan statement on the exact product. PhD describes Smart Plant as suitable for vegans and vegetarians and lists 21g protein per 64g bar.
Shoppers checking allergens
Read the current wrapper for every flavour in a mixed selection. Ingredients and ‘may contain’ statements matter when milk, soya, peanuts, nuts or gluten-containing cereals are a concern.
What should you compare?
Start with the nutrition figures for one bar, then check whether its ingredients and pack format suit how you intend to use it.
| Priority | What to check | Your needs |
|---|---|---|
| Protein per bar | Compare grams of protein against the labelled bar size. Tesco lists 21g per 60g Grenade Chocolate Chip Salted Caramel bar; Myprotein lists 20g per 60g Triple Chocolate Fudge Layered Bar. | I want to know what one wrapped portion contributes, rather than relying on a claim for the range or multipack. |
| Energy and nutrients | Read energy, fat, saturates and fibre alongside protein. PhD lists 249 kcal and 6.4g saturates for its 64g Smart Plant bar; Myprotein lists 6.6g fibre for the cited 60g Layered Bar flavour. | If I am planning snacks around the rest of my food, the whole bar’s nutrition matters as much as its protein figure. |
| Sugars and polyols | Check sugars and polyols for the exact flavour, plus any pack warning. Tesco lists 1.3g sugars and 18g polyols in its cited Grenade bar; Myprotein warns that excessive consumption of its Layered Bar may produce laxative effects. | A low sugar figure alone does not tell me whether the bar’s other ingredients or serving size suit me. |
| Dietary suitability | Confirm vegan status and read the ingredient and allergen statements on each flavour. PhD lists soya and peanut paste in Smart Plant; Tesco lists milk and soya in the cited Grenade bar. | Before choosing a mixed grab bag, I need to check every flavour against the ingredients I avoid. |
What is easy to overlook?
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Assuming a protein claim tells the whole story
Two bars can list 21g protein yet have different serving sizes and energy values: Tesco lists 222 kcal per 60g for Grenade Chocolate Chip Salted Caramel, while PhD lists 249 kcal per 64g for Smart Plant.
Compare the nutrition panel per actual bar, including sugars, fibre, fat and saturates, before deciding which portion fits your plan.
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Checking one flavour for an entire mixed pack
Ingredients and precautionary allergen statements can differ by flavour. Tesco lists milk and soya in the cited Grenade bar and warns that it may contain gluten-containing cereals, peanuts and nuts.
Read the current wrapper for every flavour you intend to eat, rather than relying on the brand name or the front of the multipack.
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Overlooking polyols
Tesco lists 18g polyols in its cited Grenade bar, while Myprotein warns that excessive consumption of its Layered Bar may produce laxative effects.
Check the exact product’s label and warning. Trying an individual bar before choosing a larger pack can help you judge whether that format suits you.
Brand references
These examples illustrate product-level differences to check; a brand name does not establish the nutrition or ingredients of every flavour.
Grenade
A reference point for a dairy-based, individually portioned bar.
- Tesco lists 21g protein, 222 kcal and 1.3g sugars for the 60g Chocolate Chip Salted Caramel bar.
- That Tesco listing identifies milk and soya and carries may-contain warnings for gluten-containing cereals, peanuts and nuts.
PhD
Its Smart Bar and Smart Plant ranges offer different ingredient routes; check the particular product rather than treating them as interchangeable.
- PhD describes Smart Plant as vegan and lists 21g protein per 64g bar.
- The listed Smart Plant ingredients include soya and peanut paste; its nutrition panel gives 6.4g saturates per bar.
Myprotein
The cited Layered Bar flavour offers a way to compare fibre alongside protein.
- Myprotein lists 20g protein and 6.6g fibre per 60g Triple Chocolate Fudge bar.
- Myprotein says nutrition varies by flavour, labels the cited product as unsuitable for vegetarians and warns about excessive consumption.
Barebells
Its Original and Soft Bar formats should be compared at product level, particularly when texture or ingredients matter.
- Barebells states that its Raspberry Cream bar contains 20g protein and has no added sugar.
- Barebells says its bars contain nuts or may contain traces of nuts; check the exact product for lactose information too.
Quest
An option to investigate when a stated gluten-free product is part of the selection criteria.
- Quest describes its protein bars as gluten-free and says its Original bars contain up to 21g protein per bar.
- Quest says its bars contain sugar alcohols and that tolerance varies. Check the label of the specific product being purchased.
Tesco
A retailer reference for comparing the labels of individually sold bars and multipacks across brands.
- Its cited Grenade listing provides per-bar nutrition and allergen information.
- Use the listing for the exact flavour and pack size you are considering, then check the current wrapper.
Joybuy protein-bar multipacks
These Grenade multipacks contain individually portioned Oreo, Double Chocolate, Golden Caramel or Peanut Butter flavour bars. Compare the stated bar size and pack count, then check the exact flavour’s nutrition and allergens before choosing.
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Grenade Oreo Flavour Protein Bars, 4 x 60g
Four individually sized 60g bars offer a smaller pack to consider before buying more of the flavour. Check the current label for protein, sugars, polyols and allergens.
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Grenade Soft Core Double Chocolate, 12 x 50g
This multipack contains twelve 50g bars. If portion size matters to your choice, compare the nutrition per 50g bar and check the flavour’s ingredient and allergen statements.
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Grenade Soft Core Golden Caramel, 12 x 50g
The pack contains twelve 50g Golden Caramel bars. Compare protein, energy, sugars and polyols for this flavour on its current label rather than applying figures from another Grenade bar.
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Grenade Soft Core Peanut Butter, 12 x 50g
This is a twelve-pack of 50g Peanut Butter flavour bars. Check its exact ingredient and allergen statements before choosing it, particularly if peanuts or other allergens matter to you.
Protein-bar questions
Does ‘high protein’ mean a fixed number of grams per bar?
No. The nutrition-claims rule published on legislation.gov.uk permits a ‘high protein’ claim where protein provides at least 20% of the food’s energy value. Compare grams of protein and serving size on the bar’s nutrition panel to see what one portion contains.
Should a protein bar replace a meal?
Not automatically. Cambridge University Hospitals NHS Foundation Trust describes a range of foods that can contribute protein to a higher-protein diet. A bar can be a convenient snack, but whether it fits a particular eating plan depends on the rest of that plan.
How do I identify a vegan protein bar?
Look for an explicit vegan suitability statement for the exact bar. PhD describes Smart Plant as suitable for vegans and vegetarians; a plant-protein ingredient or a low sugar claim on another bar does not, by itself, establish vegan suitability.
How should I check allergens in a mixed grab bag?
Read the current ingredients and allergen statement for every flavour. Tesco’s cited Grenade bar contains milk and soya and carries may-contain warnings; the Food Standards Agency explains that this precautionary wording indicates possible unintended allergen presence.