What should you check?
Start with the per-100g figure to compare products on the same basis, then check the portion and the exact pack you intend to buy.
| Priority | What to check | Your needs |
| Total fat |
Read total fat per 100g, rather than relying on the bar’s size or a front-of-pack claim. The NHS low-fat benchmark for foods is 3g or less per 100g. |
If I need a bar that meets the low-fat benchmark, I need to check the exact product’s current label before choosing a multipack. |
| Portion |
Check the weight and fat content of one bar or serving. In Nature Valley UK’s Crunchy Variety pack, the listed 42g portion contains two bars and 7.6g fat. |
I may eat one bar rather than a paired portion, so I want to know what the stated serving actually contains. |
| Pack format |
Check the number of bars, whether they are individually wrapped and whether a variety pack gives nutrition information for each flavour. |
For lunches or sharing, separate portions are useful only if the flavours and ingredients suit the people eating them. |
| Other claims and allergens |
Check total fat alongside protein or sugar claims. Read ingredient, allergen and precautionary statements for the exact flavour. |
A protein bar or fruit-and-nut bar might suit one preference but not my fat limit or everyone’s allergen requirements. |
Brand and product-line references
These examples show why the exact product matters more than the brand name when comparing fat content.
Eat Natural
Fruit-and-nut and protein bars with substantially different fat figures across these examples.
- Waitrose lists Soft Red Berry Fruit & Nut at 6.4g fat per 100g.
- Eat Natural lists its Dark Chocolate & Peanut Protein Bar at 36.3g fat per 100g. Neither figure meets the NHS low-fat benchmark.
TREK
A protein-bar option for shoppers comparing protein alongside fat.
- Tesco lists 12g protein per 44g TREK High Protein Choc Caramel bar.
- The same Tesco listing gives 16g fat per 100g, above the NHS low-fat benchmark.
Nature Valley
The Crunchy Variety Family Pack provides 20 bars arranged as 10 paired portions, according to Nature Valley UK.
- The paired format makes the stated serving size clear: two bars weigh 42g.
- Nature Valley UK lists 18.1g fat per 100g and 7.6g per two-bar portion.
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Peanut Butter Protein is a three-bar multipack whose protein and fat figures need separate checks.
- Tesco lists 7.6g protein per 45g bar.
- Tesco also lists 21g fat per 100g and 9.5g per bar; check peanut suitability before sharing.
Graze
Honey Oat Boost comes in a 4x30g flapjack pack.
- Tesco gives nutrition figures both per 100g and per 30g portion.
- Those figures are 22g fat per 100g and 6.7g per portion, above the NHS low-fat benchmark.
Alpen
Alpen Light Summer Fruits is listed in a 5x19g format by Tesco.
- A Tesco fat comparison for this product was verified in November 2018. Check the current pack rather than using that historical comparison to judge today’s bar.
Joybuy fruit-snack options
These portioned fruit snacks are alternatives to consider if a cereal, oat or nut bar is not essential. They are different formats, so compare their current nutrition labels with your own fat requirement before choosing.
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Bear Raspberry Yoyo 5 x 20g
Fruit rolls rather than cereal or oat bars, in a five-pack of 20g portions. Check the current pack’s total fat per 100g and sugar content if you are comparing them with snack bars.
Joybuy
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The Fruit Factory Mixed Fruit Stars 5 Packs
Mixed-fruit stars are fruit gums, not traditional snack bars. Check the current fat and sugar figures; before offering them to young children, also check the pack’s choking-hazard warning.
Joybuy
Frequently asked questions
What counts as low fat for a snack bar?
The NHS defines low fat for foods as 3g total fat or less per 100g. Check that figure on the exact solid bar; a small per-bar amount does not by itself show that the product meets the per-100g benchmark.
Does ‘light’ or ‘no added sugar’ mean a bar is low fat?
No. ‘Light’ describes a comparison with another product, while ‘no added sugar’ concerns sugar rather than fat. Check total fat per 100g against the NHS low-fat benchmark instead.
Which of these snack-bar multipacks has the least fat?
Among the five compared snack-bar multipacks, Eat Natural Soft Red Berry Fruit & Nut has the lowest listed figure, at 6.4g fat per 100g according to Waitrose. That is still above the NHS low-fat benchmark of 3g per 100g.
Will one of these bars fit a prescribed low-fat plan?
The five compared snack-bar multipacks all exceed the NHS low-fat benchmark. A prescribed plan may have its own per-snack or daily limits, so use the current label and follow the requirements given by your clinical team rather than assuming a bar fits.
What should I check before sharing a multipack?
Check each flavour’s current fat figures, ingredients, allergen declarations and precautionary statements, as well as how the bars are portioned. A variety pack or a claim on one flavour does not establish suitability for everyone sharing it.