Who is this choice for?
The decision changes depending on whether you want fewer crisps in the lunchbox, a different type of crisp, or a product that meets a specific dietary requirement.
Parents packing school lunchboxes
If crisps are an occasional addition, compare the portion and full nutrition label rather than choosing on a reduced-fat claim alone. NHS lunchbox guidance advises cutting down how often crisps are included and suggests homemade plain popcorn or plain rice cakes as alternatives.
Families changing from regular potato crisps
Walkers UK describes Oven Baked Sea Salt as having 50% less fat than regular potato crisps and declares 13g fat per 100g. It is a potato-based baked snack, not a conventional sliced-potato crisp, so check whether that distinction matters to the person eating it.
Shoppers checking dietary suitability
Read the declaration on the exact flavour and pack, particularly when allergens matter. Walkers Oven Baked Sea Salt has a may-contain statement, while the product information for KETTLE Lightly Salted and Seabrook Sea Salted states vegan and vegetarian suitability.
What should you check before buying?
Start with whether a crisp belongs in this particular lunchbox. If it does, compare products per 100g, then look at what the individual bag contributes.
| Priority |
What to check |
Your needs |
| Fat and label claims |
Compare fat per 100g before comparing differently sized bags. Walkers UK lists 13g per 100g for Oven Baked Sea Salt; KETTLE Chips lists 29.5g for Lightly Salted, and Seabrook lists 30.4g for Sea Salted. These are figures for those specific products, not their entire ranges. |
I want to reduce fat compared with these conventional potato crisps, but I do not want the words ‘baked’ or ‘lightly salted’ to make the decision for me. |
| Using the nutrition label |
Where a traffic-light label appears, read it alongside the nutrition table and serving size. Food Standards Agency guidance says the colours describe the amounts of fat, saturates, sugars and salt. |
I want a quick way to compare labels, then I can check the figures. In a Food Standards Agency and Ipsos survey of 611 Northern Ireland food shoppers interviewed between 16 September and 23 November 2024, 49% said they actively used traffic-light labels when shopping for food; that figure is not specific to crisps. |
| Salt and portion |
Compare salt per 100g on the same basis, then check the amount in the bag being packed. Walkers UK lists 0.19g salt and 96 kcal for a 22g serving of Oven Baked Sea Salt. |
The bag going into the lunchbox matters to me as much as the per-100g comparison. I want to check its salt and calorie figures alongside fat. |
| Crisp frequency |
Decide whether this lunch needs a crisp at all. NHS lunchbox guidance advises including crisps less often and suggests homemade plain popcorn or plain rice cakes instead. |
On routine school days, I would rather vary the snack than rely on a reduced-fat crisp every time. |
| Ingredients and allergens |
Read the exact flavour’s ingredient and allergen declarations, including may-contain wording. Check any vegetarian, vegan or gluten-free statement on the current pack rather than assuming it applies across a range. |
If an ingredient or allergen matters in our household, I need the information for the bag I am buying, not a different flavour with a similar name. |
Relevant brand references
These named products illustrate different choices; their figures and suitability statements should not be extended to every flavour or product from the same brand.
Walkers
The Oven Baked Sea Salt product provides a documented potato-based, reduced-fat comparison point for an occasional crisp-style snack.
- Walkers UK declares 13g fat and 0.85g salt per 100g, and 96 kcal per 22g serving. Its 50%-less-fat statement is the manufacturer’s comparison with regular potato crisps.
- This baked snack is not a conventional sliced-potato crisp. Check its may-contain allergen statement and the details of the exact flavour bought.
Tyrrells
Its lentil crisps are a crisp-style alternative for shoppers who do not require a potato crisp.
- Tyrrells states that its listed lentil crisps contain 19g to 20g fat per 100g.
- They are made as lentil crisps, not potato crisps. Tyrrells’ 30%-less-fat comparison uses an average of standard potato crisps on sale in March 2021, so check the current pack when comparing products.
KETTLE Chips
Lightly Salted is a conventional potato-crisp reference for shoppers who prefer that format.
- KETTLE Chips lists potatoes, vegetable oils and sea salt for this product and states vegan and vegetarian suitability.
- It lists 29.5g fat per 100g. ‘Lightly Salted’ is not a claim that the product is lower in fat.
Seabrook
Sea Salted provides another conventional potato-crisp reference for comparing nutrition labels.
- Seabrook states that this product is gluten-free and suitable for vegans and vegetarians.
- Its declared figures are 30.4g fat and 1.3g salt per 100g; those are figures for Sea Salted, not every Seabrook flavour.
REAL Hand Cooked Crisps
REAL describes its range as hand-cooked crisps. That description identifies a style of product, not its fat content.
- If considering a REAL product for a school lunchbox, compare the individual pack’s nutrition and allergen information rather than treating ‘hand-cooked’ as a reduced-fat claim.
Joybuy product options
These options are baked crisp-style snacks in multipacks for occasional lunchboxes. The Walkers packs are potato-based; Jacob’s Crinklys is a wheat-and-potato snack rather than a conventional potato crisp. Check each pack’s current nutrition and allergen information when deciding between flavours.
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Walkers Oven Baked Variety Pack Crisps, 6 x 22g
The individual bags offer defined portions for an occasional lunchbox crisp-style snack. As this is a variety pack, compare the nutrition and allergen declarations for each flavour rather than applying the figures for one flavour to all six bags.
View on Joybuy
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Walkers Oven Baked Cheese & Onion Crisps Flavour, 6 x 22g
This single-flavour multipack is an option when a baked potato-based snack is wanted for occasional lunches. It contains milk; check the exact pack for its other allergen information and compare fat and salt per 100g as well as per bag.
View on Joybuy
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Jacob's Crinklys Cheese & Onion Snacks, 6 x 23g
Consider this multipack only if a wheat-and-potato baked snack fits the lunchbox choice; it is not a conventional potato crisp. It contains wheat and milk. Read the current pack’s nutrition panel and full allergen declaration before buying.
View on Joybuy
Questions about crisps in lunchboxes
Does ‘reduced fat’ mean a crisp is low in fat?
No: ‘reduced fat’ compares a product with another food; it does not tell you the full fat content on its own. Walkers UK describes Oven Baked Sea Salt as having 50% less fat than regular potato crisps and lists 13g fat per 100g. Read the per-100g and per-bag figures before deciding.
Should reduced-fat crisps go in a lunchbox every school day?
NHS lunchbox guidance advises cutting down how often crisps are included, even when choosing between crisp varieties. It suggests homemade plain popcorn or plain rice cakes as alternatives; when packing crisps, check the portion in the actual bag.
Do England’s school-food rules decide what can go in a packed lunch?
Department for Education guidance on school food in England addresses food and drink provided by state-funded schools, rather than establishing a rule for every lunch brought from home. Check the individual school’s packed-lunch policy for its requirements.
What should I compare when two crisp packs both look suitable for lunchboxes?
Compare their nutrition figures per 100g, then per bag for the portions you would actually pack. Food Standards Agency guidance explains that traffic-light labels, where present, show the amounts of fat, saturates, sugars and salt at a glance. Read the exact flavour’s ingredient and allergen declarations too.