Choose a protein bar by its nutrition information per bar, not the word “protein” on the front: compare protein, sugars and saturated fat for the exact flavour. If ingredients or dietary status matter, check the allergen and polyol information too, and control substitutions in your grocery order so a different bar is not accepted without review.
If you are adding a bar to a food order for work, travel or training, compare protein per whole bar and its serving size. Manufacturer listings for Myprotein, Barebells and Grenade include examples with 20g protein per bar, but their ingredients and other nutrition figures differ.
Check the suitability statement for the exact product rather than relying on its brand. PhD describes its Smart Plant Bar as suitable for vegans and vegetarians; the Salted Caramel bar lists 21g protein per 64g serving, while its ingredients include soya and peanut paste.
A substitute may have different ingredients or “may contain” warnings. Check the chosen bar before ordering and inspect the delivered pack; Tesco says shoppers can leave substitution preferences, but it cannot always accommodate them.
Start with the whole bar you intend to eat, then check its exact flavour and your delivery settings. A protein figure alone cannot answer whether its ingredients or other nutrition details suit you.
| Priority | What to check | Your needs |
|---|---|---|
| Protein per bar | Read the grams of protein for one whole bar and its serving weight. Check whether a multipack lists values per bar or for another serving size. | I want to know how much protein the bar I will actually eat provides, rather than compare front-of-pack wording. |
| Other nutrition | Compare sugars, saturated fat and energy per bar for the exact flavour. Use per-100g figures if you also want to compare products of different sizes on the same weight basis. | A protein claim is not enough for me; I also want to compare the nutrition figures that matter to my choice. |
| Ingredients and suitability | Check the ingredient list, allergens, “may contain” statements and vegan or vegetarian declaration. Read any polyol information and product-specific warnings. | If I avoid particular ingredients, a different flavour or product line may not meet the same requirements. |
| Delivery substitutions | Review the exact flavour and pack size in the basket. Set substitution preferences or decline substitutes where the service offers that choice, then inspect any delivered alternative. | I need the delivered bar—not just the one initially selected—to meet my ingredient and serving-size requirements. |
A protein claim does not tell you the bar’s sugars, saturated fat, energy or fibre content.
Read those figures alongside protein per bar for the exact flavour before choosing.
The manufacturer examples here include a 55g Barebells Cookies & Cream bar, a 60g Myprotein Layered Protein Bar and a 64g PhD Smart Plant Bar. Their per-100g figures do not describe the amount in one bar.
Use per-bar figures to compare what you would eat as a serving; use per-100g figures for a like-for-like comparison by weight.
Another bar can have different ingredients, allergen warnings or nutrition. Tesco says substitution preferences may not always be met.
Decline substitutions where available if only the chosen product will do, or state precisely which alternatives are acceptable. Inspect any substitute before consuming it.
PhD describes its Smart Plant Salted Caramel bar as vegan, but its ingredient list includes soya and peanut paste.
Check the vegan statement and the allergen information separately, along with the nutrition panel for that flavour.
These examples illustrate why the exact product and flavour matter; a brand name alone does not establish its ingredients or suitability.
Grenade sells milk-protein bars, and Tesco has listed individual 60g Grenade bars in its online protein-bar category.
PhD describes its Smart Plant Bar as suitable for vegans and vegetarians.
Myprotein’s Layered Protein Bar range includes a Triple Chocolate Fudge flavour with stated protein and fibre figures.
Barebells lists nutrition and ingredient information for its Cookies & Cream protein bar.
Quest describes its protein-bar range as providing 20g protein. Check the label of any particular bar before comparing it with UK grocery listings.
These Grenade Oreo and Soft Core multipacks offer different flavours, bar sizes and pack counts. Compare the exact product information and delivery details before choosing one for an online order.
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The four-bar pack may suit an order where you want fewer bars of this flavour. Compare nutrition per 60g bar and check the Oreo flavour’s ingredients and allergen information.
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This 12-bar Oreo pack is an alternative when you want more of the same stated flavour. Check nutrition per 60g bar, the ingredient information and the pack count in your basket.
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For a Double Chocolate bar in a 50g serving size, compare the per-bar nutrition with the 60g Oreo options rather than assuming equal amounts per bar. Check this flavour’s ingredients before ordering.
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This Golden Caramel option contains twelve 50g bars. Use its own per-bar nutrition and ingredient information when comparing flavours, particularly if a substitute would not be acceptable.
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This Peanut Butter flavour comes as twelve 50g bars. Check its exact allergen declaration and per-bar nutrition rather than transferring details from another Soft Core flavour.
No. Compare the protein, sugars, saturated fat and energy figures for the bar you intend to eat. Action on Salt & Sugar’s November 2025 review covered 458 snack bars from 10 major UK retailers—not protein bars alone—and found substantial variation in their nutrition classifications.
Check the exact flavour’s ingredients, allergen declaration and “may contain” statement before ordering, then check the delivered pack before consuming it. The listed Barebells, Grenade and PhD examples show that products with similar protein figures can have different ingredient and allergen information.
If the exact ingredients, dietary status or serving size matter, decline substitutions where possible or give a precise acceptable-substitute preference. Tesco says it may offer an alternative when substitutions are allowed, but cannot always meet a shopper’s preference; its grocery policy says an unwanted substitute can be handed back to the driver or Click+Collect colleague for a refund.
Some products contain polyols and warn about excessive consumption. Myprotein, Barebells and Grenade include such warnings on the cited product pages, so check the warning for the exact bar rather than assuming every flavour has the same formulation.