Hosts serving individually wrapped portions
Keep each bar in its wrapper so guests can check the protein per portion, ingredients and allergen statement before choosing.
Who are the bars for?
Guests looking for a plant-based option
TREK describes its Cocoa Oat flapjack as vegan, with 9 g plant protein per 50 g bar. Its may-contain statement still matters for guests avoiding peanuts, nuts or milk.
Guests choosing a peanut-based protein bar
Nature Valley and Eat Natural offer peanut-containing options. Keep them distinct from other buffet food and leave their allergen information visible.
What should you check?
Start with the claim and protein amount per bar, then check whether each wrapped portion suits the people sharing the buffet.
| Priority | What to check | Your needs |
|---|---|---|
| Protein wording | Read the exact claim on the current pack and compare protein per bar alongside portion size. Nature Valley states around 10 g per 40 g bar; TREK states 9 g per 50 g flapjack. | I want a bar presented as high protein, rather than assuming every product called a protein bar makes that claim. |
| Allergen information | Check ingredients and may-contain statements on each product. Nature Valley's researched range contains peanuts, soya and milk; TREK Cocoa Oat may contain peanuts, nuts and milk. | Guests need to see the label before picking up a bar, particularly when the buffet includes nut-containing products. |
| Nutrition per portion | Compare sugars and energy per bar, not just per 100 g, while noting that bar sizes differ. Check the current pack for the flavour and serving size you plan to serve. | If I am offering several flavours, I want guests to be able to compare the portions they will actually take. |
What could catch you out?
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Reading ‘protein bar’ as ‘high protein’
Those descriptions are not interchangeable: TREK presents Cocoa Oat as a protein flapjack, and Eat Natural describes its Dark Chocolate & Peanut bar as a source of protein.
For a high-protein-labelled section, check the exact wording and nutrition panel on each pack rather than relying on the category name.
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Mixing unwrapped bars in one bowl
Guests could lose access to the ingredient and may-contain statements. The Food Standards Agency explains that precautionary allergen labelling communicates possible unintended allergen presence.
Leave bars wrapped and grouped by product, with labels available before guests choose.
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Assuming protein positioning tells you the sugar content
Sugar content varies across snack bars. In its November 2025 review of 458 bars from 10 major UK retailers, Action on Salt & Sugar classified 37% of the sampled products as high in sugars; that figure does not describe every protein bar.
Compare sugars and energy for the portion stated on each pack when deciding which bars to offer.
Relevant brand ranges
Nature Valley
Its UK Protein range includes individually wrapped 40 g bars in Peanut & Chocolate and Salted Caramel Nut variants.
- Nature Valley states around 10 g protein and around 4 g fibre per 40 g bar for the range.
- The range contains peanuts, soya and milk and may contain tree nuts; check the exact variant's wrapper.
TREK
Cocoa Oat is a vegan oat flapjack for guests who want a plant-based choice.
- TREK states 9 g plant protein per 50 g bar and says it is made with gluten-free oats.
- It may contain peanuts, nuts and milk. TREK presents it as a protein flapjack, not with a high-protein claim.
Eat Natural
Dark Chocolate & Peanut is a peanut-based bar for a separately labelled, nut-inclusive part of the buffet.
- Eat Natural states 7.8 g protein per 40 g bar.
- It contains peanuts and may contain milk and several tree nuts. The brand calls it a source of protein rather than a high-protein bar.
Graze
Cocoa Vanilla Oat Boost offers an oat-snack alternative, rather than a substitute for a bar specifically labelled high protein.
- The Tesco Groceries listing describes it as vegan and gives 116 kcal and 2.7 g sugars per 30 g serving.
- Check the current pack's protein information if a high-protein claim is essential to your buffet selection.
Joybuy protein-bar options
These Nature Valley and Grenade bars are options for individually portioned protein snacks. Check each variant's wrapper before placing it on a shared buffet.
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Nature Valley Protein Peanut & Chocolate, 4 × 40 g
Four 40 g bars provide wrapped portions for a separately labelled buffet selection. Nature Valley states around 10 g protein per bar; this variant contains peanuts, soya and milk and may contain nuts.
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Nature Valley Protein Salted Caramel Nut, 4 × 40 g
This four-pack offers another 40 g portion in the Nature Valley Protein range. Keep its own allergen label visible: this variant contains almonds, milk, peanuts and soya.
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Grenade Soft Core Protein Bar Double Chocolate, 12 × 50 g
The 12-pack provides 50 g bars for a separately labelled protein-bar choice. This variant contains milk and soya; check its wrapper if guests require a gluten-free option.
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Grenade Soft Core Protein Bar Golden Caramel, 12 × 50 g
This Golden Caramel variant comes as twelve 50 g bars. It contains milk and soya; check the pack before offering it to guests who need a gluten-free choice.
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Grenade Soft Core Protein Bar Peanut Butter, 12 × 50 g
Keep these twelve 50 g bars in a clearly labelled peanut-containing selection. This variant contains peanuts, milk and soya; check its wrapper for any other dietary requirements.
Frequently asked questions
Does 10 g of protein per bar automatically mean ‘high protein’?
No. Protein grams alone do not establish what claim a bar makes. Check the exact wording and nutrition panel on the current pack rather than treating ‘protein bar’ and ‘high protein’ as interchangeable.
Can I put assorted protein bars into one buffet bowl?
Keep different products wrapped and identifiable instead of mixing loose bars. The Nature Valley, TREK and Eat Natural products discussed here have different ingredients and may-contain statements, which guests need to read before choosing.
Is there a vegan option among these brand examples?
TREK describes its Cocoa Oat Protein Flapjack as vegan and made with gluten-free oats. It may contain peanuts, nuts and milk, so guests with those allergies still need to check its label.
Should every bar at a Boxing Day buffet be high protein?
No. A clearly labelled high-protein option can sit alongside other separately labelled snacks chosen for your guests' needs. Compare the ingredients, allergens and nutrition per bar rather than assuming one type of bar suits everyone.