Who is this comparison for?

Readers comparing total fat

If limiting fat is your main criterion for a revision snack, compare the nutrition panels per 100g as well as per bar. Names such as Light and claims about sugar or individual ingredients do not tell you the total fat in the finished bar.

Readers weighing other nutrients

If protein, fibre or sugars also affect your choice, check each figure for the portion you will eat. A bar that fits one of those preferences need not have the lowest total fat.

Readers checking dietary suitability

Check the exact pack’s ingredients and precautionary allergen statements before making a bar a regular desk snack. Dietary descriptions such as vegan or gluten-free do not answer a separate nut or soy allergy concern.

What should you compare?

Start with total fat on a like-for-like basis, then use the serving size and other label details to decide whether a particular bar fits your revision break.

Priority What to check Your needs
Total fat Compare total fat per 100g across bars, then check grams of fat per bar. Assess any reduced-fat wording for the complete product, not an ingredient. I want to limit fat without mistaking a small bar or a Light name for a lower-fat recipe.
Sugars and portion Read sugars per bar separately from total fat and note the bar’s weight. Tesco Groceries lists 17g sugars and 3.9g fat per 35g nakd. Blueberry Muffin bar. A no-added-sugar description does not settle my separate question about how much sugar is in the bar I will eat.
Protein and fibre Compare protein and fibre for the same serving size, alongside fat. Tesco Groceries lists 7g protein, 4.7g sugars and 9.7g fat per 36g Nature Valley Protein Chocolate & Orange bar. If protein or fibre matters to me, I still want to see the bar’s fat figure rather than choosing from its front-of-pack description alone.
Allergens Read the exact pack’s ingredient list and precautionary statements. Check dietary labels independently of nut, peanut, milk, soy and gluten-containing cereal ingredients. I need a bar that meets my ingredient requirements, not just one with suitable nutrition figures.

What can mislead you?

  • Reading Light or lower sugar as reduced fat

    Those descriptions concern different product characteristics. Tesco Groceries lists 9.7g fat per 36g Nature Valley Protein Chocolate & Orange bar alongside its lower-sugar positioning.

    Compare total fat per 100g and per bar, and assess a reduced-fat claim only when it applies to the complete product.

  • Equating no added sugar with little sugar

    Tesco Groceries lists 17g naturally occurring sugars per 35g nakd. Blueberry Muffin bar. Its sugar figure remains relevant even if its fat figure suits your comparison.

    Read sugars and total fat as separate entries on the nutrition panel for the portion you intend to eat.

  • Using protein as a shortcut for lower fat

    Tesco Groceries lists 10.4g protein and 11.4g fat per 40g Eat Natural Salted Caramel protein bar. The protein figure does not establish a lower total-fat level.

    If limiting fat comes first, compare that figure before weighing protein against your other preferences.

  • Assuming a dietary label covers every allergen

    A vegan or gluten-free description does not rule out nuts, peanuts or soy. Ingredients and precautionary statements can also differ between variants.

    Read the current pack for the exact bar and flavour before buying it for someone with an allergy.

Which brands are relevant?

These brand references describe particular bar ranges and variants; they are not a fat ranking of each brand’s full range.

Nakd

Fruit-and-nut bars, including the Blueberry Muffin variant.

  • Tesco Groceries lists 11g total fat per 100g and 3.9g per 35g Blueberry Muffin bar.
  • That bar also lists 17g sugars per serving and contains cashews and almonds. Check its precautionary allergen statement on the pack.

Graze

The Oat Boost range includes the Honey Oat Boost flapjack.

  • Tesco Groceries lists 3.3g sugars per 30g Honey Oat Boost bar.
  • The same listing gives 22g total fat per 100g and 6.7g per bar. Graze’s statement about reducing saturated fat since the range launched is not a reduced-total-fat claim for this bar.

Nature Valley

Its range includes the Protein Chocolate & Orange bar, which the brand positions around protein, fibre and lower sugar.

  • Tesco Groceries lists 7g protein and 4.7g sugars per 36g bar.
  • The same serving lists 9.7g fat. Nature Valley’s lower-sugar comparison does not establish a lower-fat product.

Eat Natural

Nut-and-fruit bars include a Salted Caramel protein variant.

  • Tesco Groceries lists 10.4g protein per 40g Salted Caramel bar.
  • It also lists 28.4g fat per 100g and 11.4g per bar. Check the pack for peanut, almond, soy and milk-related ingredients.

Trek

The Cocoa Oat protein flapjack is described in its Tesco Groceries listing as vegan and gluten-free.

  • The listing describes 9g plant protein per bar.
  • For a total-fat comparison, use the nutrition panel on the exact Cocoa Oat pack rather than its protein description.

Alpen

Alpen Light includes a Chocolate & Fudge cereal-bar variant.

  • Its 5 x 19g pack identifies the portion size to use when reading the nutrition panel.
  • Light in the product name does not establish the bar’s total fat or a reduced-fat claim. Check the current pack before comparing it with another bar.

Snack bars on Joybuy

These Joybuy options include cereal, fruit-and-nut and protein bars for revision breaks. Compare the exact pack’s nutrition and allergens against your priorities; the product selection below is separate from the four-bar Tesco Groceries comparison.

Special K Dark Chocolate snack bars, 6 x 21.5g

Special K Dark Chocolate Snack Bars, 6 x 21.5g

The individual 21.5g bars offer a portion to consider for a revision break. If limiting fat is your priority, compare total fat per 100g and per bar on the current pack, alongside sugars and allergens.

View on Joybuy
Nakd Blueberry Muffin raw fruit and nut bars, 4 x 35g

Nakd Blueberry Muffin Raw Fruit & Nut Bars, 4 x 35g

For a fat-focused comparison, the label reported by Joybuy and Tesco Groceries lists 11g total fat per 100g and 3.9g per 35g bar. It also lists 17g sugars per bar; check the pack for cashews, almonds and precautionary allergen information.

View on Joybuy
Grenade Soft Core Double Chocolate protein bars, 12 x 50g

Grenade Soft Core Double Chocolate Protein Bars, 12 x 50g

If you are considering a protein bar for revision breaks, compare this 50g bar’s total fat, sugars and protein on the current pack. Check its ingredients and allergen statement before choosing the Double Chocolate variant.

View on Joybuy
Grenade Soft Core Golden Caramel protein bars, 12 x 50g

Grenade Soft Core Golden Caramel Protein Bars, 12 x 50g

The Golden Caramel variant comes as 50g bars. For a choice centred on fat, read its total-fat figure per 100g and per bar before weighing protein or sugar figures; check the exact pack’s allergens too.

View on Joybuy
Grenade Soft Core Peanut Butter protein bars, 12 x 50g

Grenade Soft Core Peanut Butter Protein Bars, 12 x 50g

If this 50g protein bar appeals to you as a desk snack, compare its total fat and other nutrition values for the serving. Check the Peanut Butter variant’s ingredient and precautionary allergen statements on the pack.

View on Joybuy

Common questions

How can I assess a reduced-fat claim on a snack bar?

Check that the claim concerns the complete bar, then compare total fat per 100g and per serving on its nutrition panel. A Light name, lower-sugar statement or fat-reduced ingredient does not by itself describe the total fat of the finished bar.

Does no added sugar mean a bar is low in sugar or fat?

No: those are separate characteristics. Tesco Groceries and Joybuy list 17g sugars and 3.9g fat per 35g nakd. Blueberry Muffin bar, with the sugars described as naturally occurring. Read each figure for the portion you plan to eat.

Which of the four compared bars has the lowest total fat?

Among the four directly comparable product labels from Tesco Groceries, nakd. Blueberry Muffin has the lowest total fat at 11g per 100g and 3.9g per 35g bar. This limited comparison does not establish a reduced-fat claim or identify the lowest-fat bar across the UK market.

What allergen details should I check before buying?

Read the ingredient list and precautionary statements on the exact pack, including when a bar carries a vegan or gluten-free description. The Food Standards Agency identifies cereals containing gluten, milk, peanuts, soybeans and tree nuts among allergens that food businesses must declare when present as ingredients; check the particular variant for your requirements.

How should I keep bars bought for revision week?

Follow each pack’s storage instructions and best-before date. The Tesco Groceries listings for nakd. Blueberry Muffin and Eat Natural Salted Caramel specify a cool, dry place.