Someone after a small sweet portion
Compare the size of one bar and its calories, sugars and fibre per bar. A light-sounding name does not tell you how the portion compares with another bar.
Who is choosing a late-night snack bar?
Someone comparing protein and fibre
Look at both figures rather than assuming a protein bar also has the fibre level you want. Bars with larger portions may also have different calorie and sugar figures.
Someone checking dietary suitability
Vegan, gluten-free and dairy-free descriptions apply to specific products, not every bar from a brand. Read the current pack for ingredients and precautionary allergen wording, particularly when avoiding nuts, peanuts, soya, milk or gluten-containing cereals.
What should you compare?
Start with the bar you would actually eat, then use the per 100g figures to compare bars of different sizes. NHS food-label guidance notes that a manufacturer's stated portion can differ from the amount someone eats.
| Priority | What to check | Your needs |
|---|---|---|
| Portion and calories | Check the weight and calories per bar. If comparing different bar sizes, also look at the per 100g panel. | I'm after one small sweet bite rather than a larger bar for my late-night snack. |
| Protein and fibre | Read the separate protein and fibre figures per bar, alongside calories and sugars. For example, Nature Valley UK lists 7.0g protein and 5.9g fibre for its 36g Protein + Fibre Coconut & Almond bar. | Protein matters to me, but I also want to know how much fibre the same portion contains. |
| Ingredients and allergens | Check the exact flavour's ingredients, allergen declaration and any 'may contain' wording. Do not transfer a vegan, dairy-free or gluten-free description to another bar in the range. | If I avoid a particular ingredient, I need the declaration for the pack I'm buying, not just a brand-level description. |
| Total sugars | Compare 'of which sugars' per bar and per 100g, even when the front says 'no added sugar'. Tesco Groceries lists 16.6g total sugars per 35g nākd. Berry Delight bar, described as naturally occurring. | A fruit-and-nut bar appeals to me, but I still want to see its total-sugars figure. |
What is easy to overlook?
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Reading 'no added sugar' as a total-sugars figure
A bar can contain sugars from its ingredients without added sugar. Tesco Groceries lists 16.6g total sugars in a 35g nākd. Berry Delight bar.
Compare the 'of which sugars' figure per bar and per 100g, as well as the front-of-pack wording.
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Choosing by protein alone
Nature Valley UK lists 7.0g protein and 167 kcal for its 36g Protein + Fibre Coconut & Almond bar; its 40g Protein Salted Caramel Nut bar lists 10.4g protein and 198 kcal. The portions and allergen declarations differ too.
Compare protein, fibre, sugars, calories and allergens for the exact bar you intend to eat.
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Assuming one brand has one allergen profile
Nature Valley UK lists wheat and barley among the allergens for Protein + Fibre Coconut & Almond, while its Protein Salted Caramel Nut bar has a different ingredient profile. A claim on one flavour cannot establish another flavour's suitability.
Read the current pack for the exact flavour, including any precautionary allergen statement.
Brand examples to compare
These examples illustrate differences between specific bars; the figures and ingredient statements should not be applied to every product from the same brand.
Alpen
Alpen Light Chocolate & Fudge is a 19g cereal bar to compare when portion size is the starting point.
- Weetabix Cereals lists 65 kcal, 4.0g sugars, 4.2g fibre and 0.9g protein per bar.
- The manufacturer says this bar is not suitable for people with a nut allergy.
Graze
Peanut Butter Oat Boosts offer a 30g oat-flapjack portion; the listed product is suitable for vegans.
- Tesco Groceries lists 119 kcal, 3.1g sugars and 4.6g fibre per 30g serving.
- The same serving lists 2.2g protein. Check the pack's peanut and other allergen information before choosing it.
Nature Valley
Its Protein + Fibre Coconut & Almond and Protein Salted Caramel Nut bars provide two different protein-and-fibre combinations.
- Nature Valley UK lists 7.0g protein and 5.9g fibre per 36g Coconut & Almond bar, versus 10.4g protein and 4.3g fibre per 40g Salted Caramel Nut bar.
- Both examples contain several allergens; the Coconut & Almond bar includes wheat and barley. Check the exact variant rather than the range name.
Eat Natural
Peanuts, Almonds & Salted Caramel is a nut-led protein bar in a 40g portion.
- Tesco Groceries lists 10.4g protein and 2.2g fibre per bar.
- The same listing gives 198 kcal and 7.9g sugars per bar; its ingredients include peanuts, almonds and soya.
nākd.
Berry Delight is a fruit-and-nut example listed as vegan and gluten-free, with no added sugar.
- Tesco Groceries lists a 35g portion at 136 kcal.
- The same bar lists 16.6g total sugars. It contains cashews and may contain soya, peanuts and other nuts.
TREK
Original Oat Protein Flapjack is a 50g vegan oat-flapjack example for comparing a larger portion.
- Myprotein UK lists 10.2g protein per 50g serving.
- The same serving lists 217 kcal and 12.2g sugars; the product may contain sesame, peanuts, other nuts and milk.
Snack-bar options on Joybuy
These packs cover protein bars, fruit-and-nut bars and an oat flapjack for planning individual late-night snacks. Compare the exact pack's portion, nutrition and ingredients before choosing.
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Nature Valley Protein Salted Caramel Nut Bar, 4 x 40g
This four-bar pack offers 40g portions for someone comparing nut-based protein bars. Check the current pack's nutrition figures and peanut, almond, milk and soya information before choosing it for a late-night snack.
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Nature Valley Protein Peanut & Chocolate Bar, 4 x 40g
For a peanut-and-chocolate option, this pack contains four 40g bars. Compare its current per-bar protein, fibre and sugars with other flavours rather than assuming the figures are the same across the range.
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Nakd Blueberry Muffin Raw Fruit & Nut Bars, 4 x 35g
This fruit-and-nut option comes as four 35g bars for portion-by-portion comparison. Check this Blueberry Muffin variant's total sugars, ingredients and allergen declaration; figures for another Nakd flavour do not establish its figures.
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KIND Protein Crunchy Peanut Butter Bars, 3 x 42g
Choose between this peanut-butter flavour and other protein bars by comparing the declared figures for a 42g bar. The pack contains three bars; read its current allergen declaration if peanuts or other ingredients matter to your choice.
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Trek High Protein Flapjack Cocoa Oat, 16 x 50g
This cocoa-oat flapjack pack contains sixteen 50g bars, so consider whether that pack size suits your plans for late-night portions. Check this flavour's per-bar nutrition and ingredients rather than using figures from another TREK flapjack.
Frequently asked questions
How do I compare bars of different sizes?
Start with the figures for the bar you intend to eat, then use the per 100g panel to compare different-sized bars. NHS food-label guidance notes that a manufacturer's stated portion may differ from the amount you eat.
Does 'no added sugar' mean low total sugars?
No. Tesco Groceries lists nākd. Berry Delight as having no added sugar while declaring 16.6g total sugars per 35g bar, described as naturally occurring. Read the total-sugars figure for the exact bar.
Which Nature Valley bar has more protein and fibre?
Nature Valley UK lists 7.0g protein and 5.9g fibre per 36g Protein + Fibre Coconut & Almond bar, and 10.4g protein and 4.3g fibre per 40g Protein Salted Caramel Nut bar. Neither leads on both figures; compare their portion sizes, sugars and allergen declarations as well.
Should I check the pack if the listing says vegan or gluten-free?
Yes. Check the current pack's ingredients, relevant claim and allergen statement for the exact flavour. A description of one bar does not establish the ingredients or suitability of another bar in the same range.