Runners wanting a savoury snack
Consider when you will eat the chips. A snack away from training serves a different purpose from food chosen shortly before a run.
Who is this choice for?
Shoppers comparing energy values
Compare kcal per 100g across products, then look at the portion you expect to eat. “Lightly salted” describes flavour, not energy content.
Shoppers with dietary requirements
Check the ingredients, allergen statement and suitability information on the exact pack rather than assuming a whole range shares the same formulation.
What should you check?
Start with a like-for-like energy comparison, then consider your portion and whether the snack fits the timing of your run.
| Priority | What to check | Your needs |
|---|---|---|
| Energy comparison | Compare kcal per 100g across packs. Then check the stated serving size and its energy value, if shown. | I want to compare products without letting different bag sizes obscure the figures. In a 2024 survey of 611 Northern Ireland respondents, the Food Standards Agency and Ipsos Northern Ireland found that 49% actively used traffic-light labelling when food shopping; this measures label use, not a preference for tortilla chips. |
| Run timing | For a snack 60–90 minutes before exercise, check carbohydrate, protein and fat. University College London Hospitals NHS Foundation Trust advises carbohydrate and protein with minimal fat at that time. | If a run is coming up soon, I need a familiar snack chosen for that session, not just the tortilla chips with the lowest kcal figure. |
| Portion size | Check whether nutrition is stated per 100g, per serving or both. Compare the stated serving with the amount you plan to eat. | A sharing bag may contain several stated servings, so I want to account for the portion I will actually have. |
| Salt and ingredients | Compare salt per 100g on the exact product. Read its current ingredients, allergen statement and dietary-suitability information. | I may need to avoid a particular ingredient, or I may want to compare savoury snacks beyond their energy figures. |
Common mistakes to avoid
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Reading “lightly salted” as “lower in calories”
Flavour wording does not tell you how much energy a product contains. ASDA lists its Lightly Salted Tortilla Chips at 477 kcal per 100g, while Tesco lists Doritos Lightly Salted at 487 kcal per 100g.
Compare kcal per 100g first, then check the portion you intend to eat.
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Choosing chips as a pre-run top-up without checking timing
University College London Hospitals NHS Foundation Trust advises carbohydrate and protein with minimal fat for a snack 60–90 minutes before exercise. The reviewed tortilla-chip products list between 15.0g and 23.4g fat per 100g.
For a run starting soon, choose a familiar snack that fits that guidance rather than relying on a sharing bag of chips.
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Assuming a lentil-based option fits every dietary requirement
Marks & Spencer lists sesame and soya allergy warnings for its popped red-lentil tortillas. Their energy figure alone cannot establish whether they suit someone with an allergy.
Check the current ingredients and allergen statement on the exact pack before purchase.
Brand and retailer references
These product-specific label figures offer comparison points; a brand name alone does not establish the nutrition of every flavour or pack.
M&S
Its listed products include standard tortillas and popped red-lentil tortillas, which should be compared as distinct products.
- Marks & Spencer lists 439 kcal and 15.0g fat per 100g for its popped red-lentil tortillas, versus 481 kcal and 21.9g fat per 100g for its Lightly Salted Tortillas.
- The lentil-based product is not the same type of chip as a standard corn tortilla; check the current pack for ingredients and nutrition.
ASDA
Its Lightly Salted Tortilla Chips provide a conventional maize-chip comparison point.
- ASDA lists 477 kcal, 62g carbohydrate and 22g fat per 100g for this product.
- The “lightly salted” name does not establish its energy content or suitability shortly before a run.
Doritos
The Lightly Salted product listed by Tesco is a branded corn-chip reference for label comparisons.
- Tesco lists 487 kcal per 100g and 146 kcal per stated 30g serving.
- Those figures apply to the listed Lightly Salted product, not every Doritos flavour or pack.
Sainsbury's
Its Tortilla Chips offer another standard-chip label to compare by weight.
- Sainsbury's lists 494 kcal, 64.7g carbohydrate and 0.53g salt per 100g for this product.
- Compare the intended portion as well as the per-100g figures before using the label to plan a snack.
Tesco
Its Doritos Lightly Salted listing shows both per-100g and per-serving nutrition figures.
- The stated 30g serving contains 146 kcal and 7.0g fat.
- Check the pack you buy for current nutrition and allergen information rather than applying one listing to other products.
Joybuy tortilla-chip option
This portioned tortilla-chip multipack is an option for a savoury snack away from an imminent run, rather than a substitute for planned training fuel.
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Doritos Chilli Heatwave, 5 x 30g
For a savoury snack away from an imminent run, the five 30g bags make individual portion sizes clear. Check the current pack’s nutrition, ingredients and allergen information against your needs.
Frequently asked questions
Are tortilla chips suitable as marathon-training fuel?
Do not rely on them as your main pre-run fuel. University College London Hospitals NHS Foundation Trust advises carbohydrate and protein with minimal fat for snacks eaten 60–90 minutes before exercise, while the reviewed tortilla-chip products list 15.0g–23.4g fat per 100g. If you plan to eat chips around training, consider the portion and timing and try familiar foods during training rather than for the first time before a key run.
How can I compare tortilla chips by calories?
Compare kcal per 100g first so different bag sizes do not distort the comparison. Then check the stated serving against the amount you expect to eat. The Food Standards Agency explains that front-of-pack traffic-light labels can also help shoppers compare food products at a glance.
Which of the reviewed products lists the lowest energy per 100g?
Marks & Spencer lists its 6g Protein Smoked Paprika Popped Red Lentil Tortillas at 439 kcal per 100g, below the other products reviewed here. They are lentil-based rather than standard corn chips; the listing also gives 47.9g carbohydrate per 100g and carries sesame and soya allergy warnings.
Should I check the pack if a retailer shows ingredients online?
Yes. Check the current pack’s ingredients and allergen statement for the exact product, particularly if you have a dietary restriction. Online product information may differ from a reformulated pack.