Compare protein per whole bar, then check the rest of the nutrition panel and ingredient list before choosing flavours for a Boxing Day buffet. The Grenade, PhD and Myprotein examples discussed below provide 20g to 23g protein per bar, but their recipes and allergen statements differ; keep product labels with the bars so guests can assess their own options.
Who is choosing the bars?
A buffet selection has to work for guests with different flavour preferences and ingredient requirements, not just for the person comparing protein figures.
Hosts planning a mixed snack table
Offer a choice of flavours and keep each product identifiable. Glanbia Nutritionals reported that taste was the most important single bar attribute in its UK and Irish protein-bar consumer research, with high protein second; that finding does not establish which flavour your guests will prefer.
Guests comparing protein servings
Read the amount per complete bar rather than comparing front-of-pack descriptions. The Grenade, PhD and Myprotein examples discussed here list different protein amounts and bar sizes, so the serving size matters alongside the figure.
Hosts accommodating ingredient restrictions
Keep wrappers and their allergen statements available. Some of the named products contain milk or soya, carry precautionary allergen statements, or warn about excessive consumption; an assorted bowl without labels would obscure those differences.
What should you compare?
Check the complete bar first, then decide which flavours and pack sizes make sense for the people you are serving.
| Priority |
What to check |
Your needs |
| Protein per bar |
Compare grams of protein alongside the complete bar weight. Grenade lists 23g per White Chocolate Cookie bar, PhD lists 21g per 64g Choc Brownie bar, and Myprotein lists 20g per 60g Layered Bar. |
I want guests to see the protein amount in the portion they would actually take, rather than rely on the words on the front of the pack. |
| Full nutrition panel |
Read energy, sugars, saturated fat and fibre for the same serving. PhD lists 1.2g sugars for its 64g Choc Brownie bar; Myprotein lists 1.9g sugars and 6.6g fibre for its 60g Layered Bar. These are the brands’ figures for those products. |
Flavour matters to my buffet, but I do not want a protein figure or a low-sugar description to stand in for the whole nutrition panel. |
| Ingredients and allergens |
Check each exact flavour for ingredients and precautionary allergen statements. Grenade’s White Chocolate Cookie listing names several possible allergens; do not apply one flavour’s label to another. |
Someone avoiding a particular ingredient needs to identify which bar they are looking at before taking it. |
| Warnings and serving |
Keep any excessive-consumption warning visible. Grenade warns of a possible laxative effect for its Chocolate Chip Salted Caramel bar, which its product page says contains more than 10g polyols per 100g. |
I would rather leave bars with their labels than present several low-sugar bars as unrestricted sweets. |
| Flavours and quantity |
Check the flavour and number of bars in each pack, then confirm whether individual bars have the labelling guests will need. A mixed selection need not use the same bar for everyone. |
A choice of flavours is useful, provided guests can still tell the products apart and read their labels. |
Buffet mistakes to avoid
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Judging the whole bar by its protein claim
Protein is only one part of the nutrition panel. In its 2025 survey of supermarket snack bars, Action on Sugar reported that 37% were high in sugars and 55% high in saturated fat; those category-wide results do not describe any particular protein bar.
Compare the current label’s protein, energy, sugars, saturated fat and fibre per complete bar before choosing between products.
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Mixing flavours without their labels
Named Grenade and Barebells products contain milk and soya and carry additional possible-allergen statements. Suitability can differ between flavours and product lines.
Leave wrappers visible. If you open bars, keep each product separate with its own ingredient and allergen information; do not describe the whole assortment as free from an allergen unless every included product’s label supports it.
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Assuming low sugar means unlimited portions
Grenade’s Chocolate Chip Salted Caramel product page identifies polyols and warns that excessive consumption may cause a laxative effect. Myprotein’s Layered Bar information also carries an excessive-consumption warning.
Offer the bars as optional, identifiable snacks and retain their warnings where guests can read them.
Brands and shopping routes
These references illustrate differences between named bars and ranges; a brand name alone does not establish the nutrition or allergens of every flavour.
Grenade
Grenade offers protein bars in several flavours and pack formats.
- Grenade lists 23g protein and 1.7g sugar for its White Chocolate Cookie bar, and 20g protein and 1.4g sugar for Chocolate Chip Salted Caramel.
- Check the exact flavour’s allergens and warnings; the named products carry possible-allergen or excessive-consumption information.
PhD
The Smart Bar range includes a Choc Brownie variant with a published per-bar nutrition panel.
- PhD lists 21g protein, 1.2g sugars and 250kcal for the 64g Choc Brownie bar.
- Values vary by flavour, and PhD warns that excessive consumption may cause a laxative effect.
Myprotein
Myprotein lists bars, wafers and other protein-snack formats, offering different textures to consider for a buffet.
- Its Layered Bar nutrition panel lists 20g protein, 1.9g sugars and 6.6g fibre per 60g serving.
- Check the chosen variant’s dietary information and excessive-consumption warning rather than assuming all formats share the same recipe.
Barebells
Barebells makes Original, Soft and plant-based bar ranges, with ingredients that differ between products.
- Barebells states that its Cookies & Cream bar contains 20g protein.
- Barebells says its Original and Soft bars contain lactose or may contain traces; check the exact bar before including it for a guest avoiding lactose.
Tesco
Tesco is a supermarket shopping route for bars from several brands, rather than a protein-bar manufacturer.
- Its protein-bar category includes different brands and formats, which can help when assembling a mixed selection.
- Tesco advises shoppers that formulations, nutrition information and allergens can change; check the product label when selecting a bar.
Protein bars on Joybuy
These packs offer Grenade and Nature Valley flavours to consider for a Boxing Day buffet. Check each exact product’s nutrition and allergen label before deciding which bars to serve.
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Grenade Oreo Protein Bars, 4 × 60g
Oreo flavour offers a distinct choice for the buffet. Check the label of this exact bar for its protein serving, allergens and any polyol warning.
View on Joybuy
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Grenade Soft Core Double Chocolate Protein Bars, 12 × 50g
Double Chocolate is one flavour option when planning a larger selection. Read this variant’s wrapper for its nutrition, ingredients and warnings before serving.
View on Joybuy
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Grenade Soft Core Golden Caramel Protein Bars, 12 × 50g
Golden Caramel adds a non-chocolate-named flavour to the choice of packs. Confirm its complete-bar nutrition and allergen statements on the product label.
View on Joybuy
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Grenade Soft Core Peanut Butter Protein Bars, 12 × 50g
Keep this Peanut Butter flavour clearly identified in a shared buffet. Check its exact ingredient and precautionary allergen statements before offering it to guests.
View on Joybuy
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Nature Valley Protein Peanut & Chocolate Bars, 4 × 40g
This Peanut & Chocolate bar provides another flavour and bar size to compare. Read its per-bar protein figure and allergen information rather than assuming it matches the Grenade bars.
View on Joybuy
Questions about serving protein bars
Does a high-protein description tell me which bar to buy?
No. Compare protein per whole bar, then read the energy, sugars, saturated fat, ingredients and allergen statements for the exact flavour. A protein description alone does not make two bars nutritionally interchangeable.
Should I unwrap assorted bars into one buffet bowl?
Keep the original wrappers or the complete ingredient and allergen information beside each separate product. The named Grenade and Barebells examples have differing allergen statements, so guests need to know which bar they are considering.
Can a protein bar stand in for a Boxing Day meal?
Do not treat its protein description as evidence that it replaces a meal. If you are planning a buffet, offer bars as one optional snack alongside the other food, and assess their full labels rather than protein alone.
What should I do with leftover bars?
Keep them in their wrappers and follow each product’s storage instructions and printed best-before date. Barebells notes that the best-before date is on its packaging, so check individual products rather than applying one date to an assortment.