Parents packing school lunchboxes
Individual bags are convenient, but their size can make the fat figure per bag look small. Compare products per 100g first, then check what one bag contains.
Who is this choice for?
Families comparing familiar puffed snacks
If you want a lower-fat option rather than a fat-free one, compare the nutrition panels of the flavours and variants your child will eat. “Lower than another snack” does not necessarily mean low in fat.
Families avoiding milk or gluten
Start with the current ingredients and allergen statement for the exact variant. A Free From label identifies particular excluded ingredients; it does not tell you whether the snack has less fat or salt.
What should you check?
Check any dietary restrictions first, compare suitable snacks on the same per-100g basis, then look at the amount in the pack going into the lunchbox.
| Priority | What to check | Your needs |
|---|---|---|
| Fat content | Compare total fat per 100g, not just per bag. The NHS describes 3g or less per 100g as low fat and more than 17.5g as high fat for solid foods; “baked” does not replace the nutrition figure. | I want less fat than in another snack without mistaking a comparatively lower figure for a low-fat label. |
| Reading the label | Use any front-of-pack traffic lights alongside the per-100g nutrition table. Read the per-pack figures afterwards to see the amount in the chosen portion. | I want a quick way to compare labels while shopping. In the Food Standards Agency’s Making Food Better Tracker Survey 2024, 92% of the 611 people interviewed recognised traffic-light labelling, while approximately 49% actively used it when shopping for food. Interviews took place from 16 September to 23 November 2024; these are general food-shopping measures, not maize-snack preferences. |
| Salt alongside fat | Compare salt per 100g across products, then check salt per pack. Tesco Groceries lists 1.1g salt per 100g for Wotsits WOW Lightly Salted Puffs and 2.7g per 100g for its reviewed Smiths Frazzles Bacon sharing bag. | A snack with less fat than another option might still have a salt figure I want to compare before packing it. |
| Ingredients and allergens | Read the current ingredients and both “contains” and “may contain” statements for the exact variant. Check whether maize is the main base if that matters to your choice; a Free From claim applies to the allergens it names. | If milk or gluten must be avoided, I need to establish that the particular pack is suitable before comparing its fat and salt with other suitable snacks. |
| Lunchbox portion | Check the weight of an individual bag or decide how much to pack from a larger one. Compare nutrients per 100g before using per-pack figures to assess that portion. | An individual bag is easier to pack; with a sharing bag, I would need to portion the snack at home. |
Common buying mistakes
-
Assuming baked means low in fat
Tesco Groceries lists baked Wotsits WOW Lightly Salted Puffs at 21g fat per 100g. That exceeds the NHS high-fat guide of more than 17.5g per 100g.
Treat “baked” as a description of how the snack is made and use the fat figure for your comparison.
-
Comparing only one small bag
Different bag weights make per-pack nutrient figures difficult to compare directly: a smaller bag contains less snack.
Compare fat, saturates and salt per 100g first. Then read the per-pack figures for the portion you plan to pack.
-
Treating Free From as a nutrition judgement
Tesco Groceries identifies its Free From Cheese Balls and Onion Maize Snack Rings as free from milk and gluten-containing cereals, but lists 22.7g and 23.9g fat per 100g respectively. Both exceed the NHS high-fat guide.
Check the exact pack’s allergen statement for the dietary restriction, then compare its nutrition panel with other suitable products.
-
Overlooking salt after finding less fat
Tesco Groceries lists 23g fat and 2.7g salt per 100g for its reviewed Smiths Frazzles Bacon sharing bag. A lower fat figure than another snack does not establish a lower salt figure.
Read fat and salt per 100g separately, then check the figures for the portion going into the lunchbox.
Relevant brand and product lines
Wotsits
Standard Wotsits Cheese and Wotsits WOW Lightly Salted Puffs have different ingredients and nutrition figures, so the variant matters.
- Tesco Groceries lists 21g fat and 1.1g salt per 100g for WOW Lightly Salted Puffs; Walkers UK lists 33g fat and 1.96g salt per 100g for standard Wotsits Cheese.
- The WOW fat figure remains above the NHS high-fat guide. Walkers UK states that standard Wotsits Cheese contains milk; check the allergen statement on the variant you choose.
Monster Munch
Pickled Onion is a familiar flavoured maize-snack option, but its figures should be compared with the exact alternatives under consideration.
- Walkers UK lists 25g fat and 1.55g salt per 100g for Monster Munch Pickled Onion, compared with 33g fat per 100g for standard Wotsits Cheese.
- Its 25g fat per 100g is higher than the 21g listed by Tesco Groceries for Wotsits WOW Lightly Salted Puffs.
Smiths Frazzles
The reviewed Bacon sharing bag offers corn-snack strips rather than puffs; its bag format also calls for a separate lunchbox portion.
- Tesco Groceries lists 23g fat per 100g for the reviewed sharing bag.
- The same listing gives 2.7g salt per 100g, so check salt as well as fat when comparing it with another snack.
Tesco Free From
The reviewed Cheese Balls and Onion Maize Snack Rings provide product-specific milk-free and gluten-free options.
- Tesco Groceries lists both variants as free from milk and gluten-containing cereals; check the current pack for the exact variant and restriction.
- Tesco Groceries lists 22.7g fat and 1.73g salt per 100g for Cheese Balls, and 23.9g fat and 1.32g salt per 100g for Onion Maize Snack Rings. Free From does not mean low in fat or salt.
Skips
The reviewed Prawn Cocktail multipack is an adjacent puffed snack rather than a close maize-snack match: Tesco Groceries lists tapioca starch before maize flour in its ingredients.
- Its 13.1g individual bags provide a defined portion size.
- Tesco Groceries lists 32g fat and 2.2g salt per 100g, with milk, soya and gluten in its may-contain information. A small bag does not make it a lower-fat maize option.
Maize and corn snack options on Joybuy
These options include individual popcorn bags, corn puffs and larger corn-snack packs for portioning at home. They are not all the same kind of maize snack: compare each pack’s current nutrition and allergen information before choosing one for a school lunchbox.
No image available
Propercorn Lightly Sea Salted Popcorn 6x10g
Six individual 10g bags offer a ready-sized lunchbox portion. Check the current nutrition and allergen label when comparing them with maize puffs, and watch for unpopped kernels.
No image available
Organix Barbeque Gruffalo Claws Corn Puffs 12+ Months 4x15g
These corn puffs are labelled for ages 12+ months and come in four 15g bags. If the flavour suits your child, check the current per-100g nutrition panel and allergen statement before comparing them with other lunchbox snacks.
No image available
Propercorn Lightly Sea Salted 70g
The 70g pack needs portioning if you want to put only some of it in a lunchbox. Check its own nutrition and allergen label rather than assuming it has the same figures as the individual-bag variant.
No image available
Love Corn Crunchy Snacks Sea Salt 115g
For a lunchbox, portion this 115g corn-snack pack at home. Compare its current fat and salt figures per 100g with other options, and check the pack’s nut and peanut allergen advice if relevant.
No image available
Walkers Wotsits Crunchy Really Meaty Corn Puffs 115g
This 115g sharing bag needs portioning for a school lunchbox. Check the nutrition and allergen information for Crunchy Really Meaty specifically; figures for standard Wotsits Cheese do not describe this variant.
Questions about lunchbox snacks
Does “baked, not fried” mean a maize snack is low in fat?
No. The NHS guide describes solid foods with 3g fat or less per 100g as low fat and those with more than 17.5g as high fat. Tesco Groceries lists baked Wotsits WOW Lightly Salted Puffs at 21g fat per 100g: lower than the 33g Walkers UK lists for standard Wotsits Cheese, but not low fat under that guide.
Should I compare figures per bag or per 100g?
Use per 100g to compare snacks sold in different pack sizes, then read the per-bag figure for the portion going into the lunchbox. A smaller bag can have a smaller amount of fat simply because it contains less food.
What matters besides total fat?
Check salt, saturates, ingredients and the current allergen statement for the exact product. For example, Tesco Groceries lists its Free From Cheese Balls as free from milk and gluten-containing cereals, but also lists 22.7g fat and 1.73g salt per 100g; Walkers UK states that standard Wotsits Cheese contains milk.
Where should I check a pre-packed snack’s nutrition details?
Check the nutrition information on the pack, including the per-100g figures for fat, saturates and salt. NHS food-label guidance explains how to read these figures; use the physical pack as your final check for the particular variant’s ingredients and allergens.