Travellers tracking fat intake
If you have a particular fat allowance for the day, compare the figure for a whole bar alongside its protein content. Pack size and flavour matter: figures for one bar cannot be assumed to apply to another.
Who is this for?
Travellers prioritising protein
If protein per bar matters more to you than a lower fat figure, compare both values before choosing a snack for a long wait or journey. A low-sugar claim does not answer the fat question.
Travellers checking ingredients
Check the exact bar’s allergen declaration, vegetarian or vegan labelling, and any sweetener warnings before packing it. These details can differ between products and flavours.
What should you check?
Start with the figures for one complete bar, then check its ingredients and how you plan to carry it.
| Priority | What to check | Your needs |
|---|---|---|
| Fat and protein | Compare fat and protein per whole bar, noting each bar’s weight. Myprotein UK lists 3.4g fat and 15g protein per 40g Lean Layered White Chocolate & Raspberry bar; the sampled Grenade and PhD bars list 9.3g per 60g and 9.2g per 64g respectively, each with 21g protein. | I have a fat allowance to work within, but still want to know how much protein the bar provides. |
| Sugars and sweeteners | Read sugars and fat as separate nutrition figures. Check the ingredients and any polyol or excessive-consumption warning; Joybuy UK lists 18g polyols in the sampled Grenade Chocolate Chip Salted Caramel 60g bar. | A low-sugar label alone will not tell me whether the bar meets my fat requirement, and I want to check its sweeteners before travelling. |
| Ingredients | Check the declaration for the exact flavour and pack. Barebells UK lists wheat and soy for its Vegan Fudge Brownie bar and warns that it may contain traces of other allergens. | I need a bar whose ingredients and dietary labelling fit my requirements, rather than assuming every flavour in a range is alike. |
| Travel arrangements | Keep the bar’s label available to inspect. GOV.UK says food in hand luggage can require additional screening; the UK Civil Aviation Authority advises checking restrictions with the airport and airline. Check destination food-entry rules separately. | I want to take a solid snack through a UK airport without assuming that security screening also settles the rules on bringing food into my destination. |
Mistakes to avoid
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Taking “low sugar” to mean lower fat
The measures are separate. Joybuy UK lists 1.3g sugars and 9.3g fat for a 60g Grenade Chocolate Chip Salted Caramel bar; PhD lists 1.2g sugars and 9.2g fat for its 64g Choc Brownie Smart Bar.
If fat is your priority, read the fat figure per complete bar first, then compare protein and sugars.
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Trying an unfamiliar sweetened bar on a travel day
Some of the named bars carry excessive-consumption laxative warnings. The Grenade Chocolate Chip Salted Caramel bar also lists 18g polyols per bar, according to Joybuy UK.
Read the ingredients, serving size and warnings; if a product is new to you, consider trying it before your journey.
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Assuming flavours have the same ingredients
Dietary suitability and allergen declarations need checking for the particular product. Myprotein labels Lean Layered as unsuitable for vegetarians, while Barebells lists wheat and soy in its Vegan Fudge Brownie bar.
Check the exact flavour’s packaging before packing or sharing it.
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Confusing airport screening with customs rules
A food item may need further checks at UK airport security, while permission to bring food into another country is a separate question.
Check your departing airport and airline for hand-luggage guidance, and the destination’s customs authority for food-entry rules.
Brand and retailer references
Myprotein
Myprotein lists Lean Layered bars within its lower-fat protein-bar range.
- Myprotein UK lists 3.4g fat, 15g protein and 138kcal per 40g White Chocolate & Raspberry bar.
- The product is labelled unsuitable for vegetarians and carries an excessive-consumption laxative warning.
Grenade
Grenade’s Carb Killa Chocolate Chip Salted Caramel bar is an example for comparing protein, sugars and fat separately.
- The Joybuy UK listing gives 21g protein and 1.3g sugars per 60g bar.
- That same bar lists 9.3g fat and 18g polyols; its figures should not be applied to other Grenade flavours.
PhD
PhD’s Choc Brownie Smart Bar offers another named product for a per-bar label comparison.
- PhD lists 21g protein and 1.2g sugars per 64g Choc Brownie bar.
- It also lists 9.2g fat per bar and carries an excessive-consumption laxative warning.
Barebells
Barebells offers a separately labelled Vegan Fudge Brownie bar for shoppers checking plant-based options.
- Barebells UK lists 15g protein per 55g Vegan Fudge Brownie bar.
- It lists 9.0g fat and contains wheat and soy; check its stated trace-allergen warning.
Tesco
Tesco is a retailer, not a protein-bar manufacturer. Its grocery listings show bars from several brands and in different pack formats.
- Its listings can help identify specific flavours and pack sizes to compare.
- An online grocery listing does not establish what will be available at an airport or the nutrition values of every flavour.
Joybuy bars to compare
These Grenade and Nature Valley multipacks are solid-bar options for packing an airport snack. Compare the nutrition panel for the exact flavour before choosing one for a lower-fat requirement; the pack name alone does not establish its fat content.
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Grenade Soft Core Double Chocolate, 12 × 50g
The 12-bar pack offers individually sized 50g bars for planning travel snacks. Check this flavour’s fat and protein per bar, ingredients and sweetener warnings before packing it.
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Grenade Soft Core Golden Caramel, 12 × 50g
This is a 12-pack of 50g bars. If you are comparing it with Double Chocolate, use each flavour’s own per-bar nutrition panel and ingredient declaration rather than assuming the values match.
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Grenade Soft Core Peanut Butter, 12 × 50g
The pack contains twelve 50g Peanut Butter bars. Check the exact product’s allergen declaration as well as its fat and protein figures before taking it for yourself or someone else.
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Grenade Oreo Flavour Protein Bar, 4 × 60g
The four-pack contains 60g bars, a different serving size from the Grenade Soft Core bars above. Compare fat, protein and sugars for one complete Oreo Flavour bar, and check its ingredient label.
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Nature Valley Protein Salted Caramel Nut Bar, 4 × 40g
This four-pack contains 40g bars. To compare it with the other travel-snack options, read its fat and protein values per bar and check the nut and other allergen information on the exact pack.
Frequently asked questions
Can I put a protein bar in hand luggage at a UK airport?
Check with your departing airport and airline before travelling. GOV.UK says food in hand luggage can obstruct x-ray images and may require manual checking; its guidance does not specifically classify every protein bar.
Does “low sugar” mean a protein bar is lower in fat?
No: sugars and fat are separate figures on the nutrition panel. Joybuy UK lists 1.3g sugars and 9.3g fat per 60g Grenade Chocolate Chip Salted Caramel bar, while PhD lists 1.2g sugars and 9.2g fat per 64g Choc Brownie Smart Bar. Compare the figures for the whole bar you intend to eat.
What if I am concerned about sweeteners while travelling?
Check the bar’s ingredients, portion size and warnings before travel. The sampled Grenade Chocolate Chip Salted Caramel bar lists 18g polyols per bar on Joybuy UK, and the named Myprotein, PhD and Barebells products carry excessive-consumption laxative warnings. Consider trying an unfamiliar bar before your travel day.
Can I take protein bars through customs after landing?
Airport security clearance does not determine a destination’s food-import rules. Check that country’s customs guidance for the ingredients in your bar. For journeys into Great Britain, GOV.UK says rules apply to food and animal products and notes that Northern Ireland has separate rules.