For a summer picnic, choose a snack bar by its protein per bar, then check sugars, fibre and the exact pack’s allergens rather than relying on a high-protein claim alone. If you are sharing food, make sure each person has a suitable option; follow the bars’ storage instructions and keep foods that require chilling cold separately.
If you are packing one bar per person, compare the protein in that individual serving. Nature Valley UK lists around 10g per 40g Protein Peanut & Chocolate bar; a high-protein claim does not give every bar the same number of grams.
Check the precise bar as well as the range name. TREK describes its protein ranges as plant-based, while the vegan nākd. Cocoa Hazelnut bar lists 7.5g protein per 45g bar. Their ingredients and protein quantities are not interchangeable.
Read each intended eater’s exact wrapper before sharing. The reviewed Nature Valley, Eat Natural and nākd. bars have different peanut, soy, milk or tree-nut declarations; a protein claim says nothing about allergen suitability.
Start with the serving you will actually pack, then check whether its ingredients and storage directions work for the picnic.
| Priority | What to check | Your needs |
|---|---|---|
| Protein per bar | Read the grams of protein for one bar and its weight. Under the applicable UK condition published by legislation.gov.uk, a high-protein claim concerns protein’s share of the food’s energy, not a fixed grams-per-bar amount. | I’m packing one bar for each person and want to know what that serving provides. |
| Nutrition alongside protein | Compare sugars, fibre, energy and saturated fat for the same serving basis. A no-added-sugar claim is not the same as a stated sugars value of zero. | A protein figure alone won’t tell me how two bars’ nutrition panels differ. |
| Allergens and dietary fit | Check the exact flavour’s ingredients, allergen declaration and may-contain wording. Check vegan, gluten-free or dairy-free wording on that product, not just its brand. | Everyone sharing the picnic needs an option that fits their own requirements. |
| Picnic storage | Follow the bar’s pack instructions. Keep foods that normally require refrigeration in a cool bag or cool box with ice or frozen gel packs, as the Food Standards Agency advises for picnics. | I’ll be carrying bars alongside other picnic food, some of which needs to stay cold. |
Bars carrying similar front-of-pack messages can have different nutrition panels. Action on Salt and Sugar’s 2025 UK supermarket snack-bar review reported that 37% of the bars it assessed would be high in sugars and 55% high in saturated fat.
Compare protein, sugars, fibre, energy and saturated fat for the individual bar you plan to pack.
The reviewed Nature Valley, Eat Natural and nākd. products have different declared allergens and may-contain warnings. A bar that suits one person may not suit another at the same picnic.
Check every exact wrapper before packing and keep alternatives clearly identified for people with different requirements.
Foods normally kept in the fridge need different handling from a bar stored according to its ambient-pack instructions. The Food Standards Agency warns that bacterial risk increases after four hours or more at 8°C and above.
Follow each bar’s storage directions, and carry foods that require refrigeration in a cool bag or cool box with ice or frozen gel packs.
Compare named products and ranges rather than assuming every bar from a brand has the same recipe or protein content.
Nature Valley UK lists around 10g protein and 4g fibre per 40g Protein Peanut & Chocolate bar.
TREK offers separate plant-based Protein Flapjack and High Protein Bar ranges.
Eat Natural UK lists 7.8g protein and 2.4g fibre per 40g Dark Chocolate & Peanut Protein Bar.
The reviewed nākd. Cocoa Hazelnut bar is a vegan option listing 7.5g protein and 7.1g fibre per 45g bar.
Graze describes snacks with attributes including plant protein or fibre.
Alpen’s range includes muesli products, but the brand name alone does not establish a snack bar’s protein content.
These Joybuy bar multipacks are options to compare for a summer picnic. Check each flavour’s nutrition panel, allergens and storage directions before choosing for a group.
No image available
The four 40g bars offer portions to compare for a picnic. Check this Salted Caramel Nut flavour’s protein and sugars per bar, and its peanut, soy, milk and almond declarations before sharing.
No image available
For a picnic planned around individual 40g bars, Nature Valley UK lists around 10g protein and 4g fibre per Peanut & Chocolate bar. The eight-bar pack contains a product with peanuts, soy and milk; the reviewed bar may also contain tree nuts.
No image available
If a 50g bar fits the picnic plan, compare this Double Chocolate flavour’s protein and sugars for that serving. The pack contains 12 bars; check its milk and soy declarations for the people who will eat them.
No image available
This Golden Caramel multipack contains 12 bars of 50g each. Use the exact flavour’s per-bar nutrition panel for comparison, and check its milk and soy declarations before packing it for others.
No image available
For a picnic where peanut-containing bars suit the intended eaters, this pack has 12 Peanut Butter bars of 50g each. Compare nutrition per bar and check the exact wrapper’s peanut, milk and soy declarations before sharing.
No. Under the applicable UK condition published by legislation.gov.uk, protein must provide at least 20% of a food’s energy for a high-protein claim; that condition does not set a fixed number of grams per bar. Compare the amount for the individual serving you intend to pack.
Follow the storage directions on each bar; the reviewed Nature Valley Protein Peanut & Chocolate bar specifies a cool, dry place. Keep picnic foods that normally require refrigeration in a cool bag or cool box with ice or frozen gel packs. The Food Standards Agency warns that bacterial risk increases for such foods after four hours or more at 8°C and above.
Vegan wording does not establish allergen suitability. The reviewed nākd. Cocoa Hazelnut bar contains peanuts and hazelnuts; check the ingredients and precautionary allergen wording on every exact pack before sharing it.
No. The reviewed nākd. Cocoa Hazelnut bar is described as having no added sugar but lists 12g sugars per 45g bar. Read the stated sugars value for the serving rather than using that claim to compare bars.