Choose a grab bag of crisps by its whole-bag nutrition and when you plan to eat it. A defined portion can work as a savoury snack away from a run, but carbohydrate, fat and salt figures alone do not establish whether it suits your long-run fuelling plan. London Marathon Events advises practising your fuelling choices during training to learn what you can comfortably consume.
If you are considering crisps during a training run, compare the carbohydrate in the actual portion with your wider fuelling plan. Practise eating that portion while running rather than assuming that a food you enjoy at rest will suit you on the move.
An individual bag gives you a defined savoury portion. Check its size and nutrition in the context of what else you plan to eat; a bag of crisps is not a complete meal or hydration plan.
If salt, ingredients or allergens affect your choice, read the declaration on the exact flavour and pack. Similar-sounding salted products can have different nutrition figures and precautionary statements.
Start with the portion you would actually eat, then decide whether the bag is an ordinary snack or part of a fuelling plan you have practised.
Consider it when: You want a defined savoury portion alongside your wider meals.
Keep in mind: Bag sizes and salt figures differ, and the snack does not replace a meal.
Consider it when: You have practised eating that food and portion during training and can account for its carbohydrate.
Keep in mind: A salted bag does not tell you how much to drink or whether it will feel comfortable while running.
Consider it when: You want a way to consume carbohydrate during a run that you can practise and tolerate.
Keep in mind: No format suits everyone; check the amount supplied and practise your drinking plan too.
| Priority | What to check | Your needs |
|---|---|---|
| Whole-bag carbohydrate | Compare the exact bag weight and its carbohydrate declaration. Walkers UK lists 13g per 25g of Ready Salted; Tyrrells lists 21.4g per 40g Lightly Sea Salted pack; Seabrook lists 16.7g per 31.8g Sea Salted bag. These are different portion sizes. | I want to know what the bag I would eat contributes to my planned carbohydrate intake, rather than compare unequal portions as though they were the same size. |
| Timing and practicality | Read fat alongside carbohydrate: Walkers UK lists 7.7g fat per 25g of Ready Salted, while Tyrrells lists 11.7g per 40g Lightly Sea Salted pack. If you intend to eat during a run, practise with the particular food and portion; London Marathon Events also advises checking what agrees with you. | For a snack at rest, a defined portion may be enough for my purpose. During a long run, I need a fuelling choice I have practised eating while moving. |
| Salt and fluids | Use the stated salt amount, not the flavour name. Tyrrells lists 0.26g per 40g Lightly Sea Salted pack; Seabrook lists 0.4g per 31.8g Sea Salted bag. Consider drinking separately from the choice of snack. | I want to compare the salt in the portion I will eat without assuming that a salted flavour answers my hydration needs. |
| Ingredients and allergens | Read the exact pack’s ingredients and precautionary statements before eating. Walkers UK says its Ready Salted product is made in a factory handling several other ingredients; Tyrrells says Lightly Sea Salted may contain milk. | If an ingredient or possible cross-contact matters to me, I need the statement for this flavour and pack, not an assumption based on the brand. |
Crisp bags provide different amounts of carbohydrate and salt. The Australian Institute of Sport advises practising an endurance-fuelling plan that also accounts for hydration needs and gut comfort; the flavour name cannot do that planning for you.
Read the whole-bag figures and practise the food and drinking choices together on training runs.
The documented products include 18g, 31.8g, 35g and 40g formats. A per-100g declaration and a whole-bag declaration describe different quantities.
Compare products on the same basis. Calculate a bag amount from per-100g figures only when the weight and figures belong to the exact product you are considering.
A Joybuy UK page headed Tyrrells Lightly Sea Salted 24 x 40g includes descriptions naming other products and nutrition that differs from Tyrrells’ own 40g product page. The listing title alone is therefore not enough for an ingredient or nutrition decision.
Check the physical pack’s product name, ingredients and nutrition before relying on those details.
These named product lines offer different portion sizes or nutrition declarations to compare; the figures do not apply to every flavour or format from a brand.
Ready Salted provides a 25g reference portion for comparing smaller bags.
Lightly Sea Salted has a manufacturer-described 40g single-serving pack.
Lightly Salted provides a per-100g potato-crisp declaration for like-for-like label comparisons.
Sea Salted crisps and Sea Salted Crunchies show why product type and portion weight both matter.
Salted Flavour offers another named potato-crisp declaration on a per-100g basis.
Sea Salt is offered by REAL Hand Cooked Crisps in a 35g bag as well as a 150g bag.
These individual-portion multipacks and potato snacks are options to consider as savoury snacks around training. Their inclusion does not establish that any one is suitable for eating during a run; check the exact pack and practise any food you intend to use for fuelling.
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The 25g inner-bag size gives you a defined portion for a savoury snack. Walkers UK lists 13g carbohydrate and 7.7g fat per 25g of Ready Salted; check the inner pack’s current label before using those figures in a fuelling plan.
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The listed 24g inner bags offer a defined snack portion. Check this Salt & Shake variant’s own nutrition and ingredient information rather than applying figures from Walkers Ready Salted.
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The listed 40g portions offer a different snack size from the smaller Walkers bags. Read the Original variant’s per-portion nutrition and ingredients if you are considering it around a run.
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This flavoured option is listed in 40g portions for a planned savoury snack. Check the Sour Cream & Onion pack’s own ingredients and nutrition rather than assuming they match Pringles Original.
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This listed 60g potato-snack bag is a larger portion than the other individual packs shown here. Check its own nutrition and ingredients, and practise with the portion first if you are considering it during a run.
Do not assume that it can. Check the bag’s carbohydrate and practise eating it during training as part of your wider plan. For endurance exercise lasting 1–2.5 hours, the Australian Institute of Sport describes 30–60g carbohydrate per hour and advises athletes to practise a plan that suits their hydration needs and gut comfort; that range is not a prescription for every runner or duration.
Read the exact pack’s ingredients, highlighted allergens and any precautionary statement before eating. Walkers UK’s factory-handling statement for Ready Salted and Tyrrells’ “may contain milk” statement for Lightly Sea Salted illustrate why a salted flavour name is not enough.
UK government guidance says nutrition information is generally mandatory on prepacked food, subject to regulatory exemptions. The mandatory declaration includes energy, fat, saturates, carbohydrate, sugars, protein and salt, expressed per 100g or 100ml. If the pack also gives a per-portion figure, check that its stated portion matches the bag you intend to eat.