Shoppers choosing a smaller snack
If you want a vegan bar for a desk drawer or commute, compare the calories in one bar rather than relying on words on the front of the pack. Check the per-100g figure too when the bars differ in weight.
Who is this choice for?
Shoppers comparing fruit-and-nut and protein bars
A fruit-and-nut format or a stated protein amount may matter to you, but neither establishes a lower calorie figure. Compare the exact flavours and serving sizes you are considering.
Shoppers with allergen concerns
Vegan suitability and allergy suitability are separate checks. Read the current ingredient list and any precautionary statements for milk, nuts, peanuts or soya that are relevant to you.
What should you check first?
Confirm vegan suitability for the exact flavour, compare energy on the same basis, then consider ingredients and allergens.
| Priority | What to check | Your needs |
|---|---|---|
| Vegan suitability | Look for an explicit vegan statement for the exact bar and flavour. Read the current ingredients rather than assuming that an oat-based or vegetarian bar is vegan. | I want a bar whose vegan status applies to the one I am buying, not just to other products from the same brand. |
| Calories and size | Check kcal per bar and the bar’s weight. Use kcal per 100g for a like-for-like comparison across different sizes, as Nature Valley UK’s label guide explains. | For a smaller snack, I care about the calories in the whole bar I will eat. I also want to know whether a difference comes partly from portion size. |
| Nutrition and ingredients | Read the current energy, sugars and saturated-fat figures per bar and per 100g. A vegan or no-added-sugar description does not give you those figures. | A fruit-and-nut bar appeals to me, but I do not want to assume its label description tells me its calorie content. |
| Protein and fibre | If these matter to your choice, check the amounts or claims for the exact variant alongside its serving size and calories. Tesco lists 7g plant protein for its nākd. Cocoa Hazelnut Protein Bar listing; TREK describes its protein flapjacks as providing 9g. | I may prefer a protein-focused bar over a smaller portion, provided its own nutrition panel fits what I am looking for. |
| Allergens | Read the exact pack’s highlighted ingredients and precautionary allergen statements. A vegan label does not mean a bar is free from milk cross-contact, nuts, peanuts or soya. | If I need to avoid an allergen, I must check that separately from the bar’s vegan status. |
Common buying mistakes
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Reading ‘vegan’ or ‘no added sugar’ as a calorie figure
Neither phrase tells you how many calories are in a bar. Action on Sugar’s 2025 snack-bar review also cautions against relying on a wholesome image when assessing sugars, saturated fat and calories.
Compare the current pack’s energy per bar and per 100g, then read its sugars and saturated-fat figures.
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Comparing bars without their weights
A smaller bar can contain fewer calories per bar partly because the portion is smaller; that alone does not establish a difference per 100g.
Use the per-bar figure for the portion you intend to eat and the per-100g figure to compare products of different weights.
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Assuming vegan means allergen-free
Eat Natural describes its peanuts, coconut and dark-chocolate cereal bar as vegan, while its product information lists peanuts and a precautionary statement for milk and several nuts.
For an allergy, check the exact current pack’s ingredients and precautionary statements independently of its vegan label.
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Choosing by bar size when protein is the priority
A small-portion bar and a protein-focused flapjack address different preferences. TREK states that its protein flapjacks provide 9g plant protein; that figure does not establish their calorie content relative to a smaller bar.
Decide which feature matters for this snack, then compare the exact products’ protein, fibre and calories per bar.
Brand and product-line references
Vegan status and nutrition figures belong to individual products and flavours, not every bar bearing a brand name.
Graze
An oat-flapjack option to examine when portion size matters: Tesco lists Cocoa Vanilla Oat Boost as suitable for vegans at 116 kcal per 30g boost.
- That listing gives both a per-bar calorie figure and a bar weight for the named flavour.
- Graze says the majority of its snacks are vegan, not all of them. Check each flavour and pack separately.
nākd.
Its Cocoa Delight fruit-and-nut bar is described by nākd. as vegan and having no added sugar; Tesco lists a separate Cocoa Hazelnut Protein Bar as suitable for vegans.
- Tesco states 7g plant protein for the named Cocoa Hazelnut Protein Bar.
- No added sugar is not a calorie figure. Check the exact bar’s nutrition panel and nut or peanut information.
TREK
A reference for vegan protein-flapjack formats when a stated plant-protein amount matters to the comparison.
- TREK states that its protein flapjacks provide 9g plant-based protein.
- That protein figure does not show that a flapjack has fewer calories than a smaller snack bar; compare exact variants.
Eat Natural
Eat Natural identifies its peanuts, coconut and dark-chocolate cereal bar as vegan.
- The named product offers a specific cereal-bar format to compare by portion and nutrition panel.
- Its product information lists peanuts and says it may contain milk and several nuts. Vegan status is not an allergy-safety statement.
Nature Valley
Nature Valley UK’s label guide explains the different uses of per-bar and per-100g nutrition figures.
- The guide is useful when comparing bars of different sizes.
- Nature Valley describes its Crunchy Canadian Maple Syrup bar as suitable for vegetarians, which does not itself confirm vegan suitability. Check the exact product.
Alpen
Alpen is a cereal-bar brand, but a familiar product-line name is not enough to establish a current vegan option.
- Alpen’s FAQ lists Alpen Light Chocolate & Orange bars among products no longer made. Confirm the exact current bar’s vegan statement and nutrition before comparing it.
Joybuy snack-bar options
These options span fruit-and-nut bars, oat flapjacks and protein-flapjack formats. Compare the current pack of each flavour for vegan suitability, calories and allergens before choosing.
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nākd. Peanut Delight 4 x 35g
A peanut bar to compare with the smaller-portion and protein-focused options. The pack contains four 35g bars; check calories per bar and the current peanut, other-nut and soya allergen advice.
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nākd. Blueberry Muffin Fruit & Nut Bars 4 x 35g
A fruit-and-nut format in four 35g bars. Compare the exact pack’s calories per bar and per 100g; check its cashew and almond ingredients and any further nut or soya warnings.
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Graze Oat Boosts Lemon Blueberry 4 x 30g
Four 30g oat flapjacks for shoppers comparing smaller portions. Check this flavour’s own calorie and vegan information rather than applying figures from Graze Cocoa Vanilla; read its precautionary allergen advice too.
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TREK Salted Caramel Protein Flapjacks 3 x 50g
A protein-flapjack format with three 50g bars. Compare its exact per-bar calories and protein figure with the smaller bars; check the pack’s vegan designation and soya allergen information.
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TREK Cocoa Oat Protein Flap Jacks 3 x 50g
A cocoa-and-oat protein-flapjack option in three 50g bars. Check this variant’s calories and protein per bar, alongside its vegan designation and soya allergen statement, rather than relying on figures for another TREK flavour.
Frequently asked questions
How do I compare calories when vegan bars have different weights?
Use calories per bar to assess the portion you will eat, then compare calories per 100g across different bar sizes. Nature Valley UK’s nutrition-label guide explains why both figures are useful.
Does ‘no added sugar’ mean a vegan bar is lower in calories?
No. That description does not establish the bar’s calorie content or total sugars. Check energy and sugars per bar and per 100g on the exact pack before comparing it with another product.
Can I assume a vegetarian Nature Valley bar is vegan?
No. Nature Valley describes its Crunchy Canadian Maple Syrup bar as suitable for vegetarians, which does not confirm that it is vegan. Check the current pack or exact product information for an explicit vegan statement.
Does a vegan label mean a bar is suitable for a milk or nut allergy?
No. Check ingredients and precautionary allergen statements separately. Eat Natural’s vegan peanuts, coconut and dark-chocolate bar, for example, lists peanuts and says it may contain milk and several nuts.