Do not rely on flavoured potato crisps as your main snack shortly before a 5k: University College London Hospitals NHS Foundation Trust advises that a snack 60–90 minutes before exercise should contain carbohydrate and protein with minimal fat, while the crisp examples checked contain substantial fat. If you want crisps at another time, compare salt by portion and check the exact flavour’s ingredients and allergen information rather than treating every variety alike.
If you are deciding what to eat shortly before running, University College London Hospitals NHS Foundation Trust’s 60–90-minute pre-exercise snack advice gives you a reason to look beyond crisps: it calls for carbohydrate and protein with minimal fat.
If crisps are an occasional snack at another time, the useful comparison is between actual portions, salt figures and flavour ingredients—not whether a packet is marketed as running fuel.
Vegan, gluten-free and allergen information needs checking for the particular flavour. Manufacturer ingredient lists show that seasonings differ even within the same broad crisp category.
Start with when you plan to eat, then compare the portion and the exact flavour label. A salt figure or a familiar flavour name cannot, by itself, tell you whether crisps fit a pre-run snack.
| Priority | What to check | Your needs |
|---|---|---|
| Pre-run timing | For a snack 60–90 minutes before exercise, University College London Hospitals NHS Foundation Trust advises carbohydrate and protein with minimal fat. Check fat per serving as well as per 100g. | If I need a snack shortly before my 5k, I would choose something that follows that guidance rather than rely on crisps for the occasion. |
| Salt | Use salt per bag for the portion you intend to eat and per 100g to compare pack sizes. KETTLE Chips lists 0.7g salt per 100g for Lightly Salted and 1.6g for Sea Salt & Balsamic Vinegar. | When I fancy crisps, I want to see what my portion contains, particularly if other foods I eat that day are salty. |
| Ingredients and allergens | Read the current pack’s ingredients, highlighted allergens, suitability statements and any ‘may contain’ wording. Tyrrells lists barley malt vinegar in Sea Salt & Vinegar Furrows; Pipers lists lactose (milk) in Burrow Hill Cider Vinegar & Sea Salt. | A potato-based snack is not automatically suitable for my dietary requirements; the particular seasoning matters. |
| Flavour familiarity | Check what gives a variety its flavour, especially if it contains vinegar, chilli or mustard seasoning. Keep ingredient checks separate from assumptions about running performance. | Close to a run, I would rather stick with foods and flavours I already know suit me than try an unfamiliar seasoning. |
Crisps contain carbohydrate, but the manufacturer figures for the cited KETTLE Chips, Seabrook, Pipers and REAL varieties also show substantial fat per 100g. University College London Hospitals NHS Foundation Trust advises minimal fat in a snack 60–90 minutes before exercise.
For that pre-run window, consider a snack that follows the carbohydrate, protein and minimal-fat guidance. Keep crisps for another time if you want them.
KETTLE Chips lists 0.7g salt per 100g for Lightly Salted, while Pipers lists 2.1g per 100g for Burrow Hill Cider Vinegar & Sea Salt. These are figures for different products, not a rule about every salted or vinegar crisp.
Compare the exact pack’s per-100g figure, then use its per-bag information to judge the portion you plan to eat. GOV.UK recommends no more than 6g salt a day for adults across their whole diet, not as a target for a run.
A vegetable-sounding flavour is not necessarily milk-free, and vegetarian suitability does not establish that a product is vegan. Pipers lists lactose (milk) in its Burrow Hill Cider Vinegar & Sea Salt crisps; REAL lists lactose (milk) in Ham & Colman’s Mustard.
Check the ingredients, highlighted allergens and precautionary wording on the current pack for the flavour you are buying.
These examples illustrate differences between named varieties; a statement about one flavour should not be applied to every product from its brand.
Walkers Ready Salted lists potatoes, vegetable oils and salt.
The named vinegar varieties have different ingredient details worth checking individually.
The brand lists nutrition and suitability details for its Lightly Salted and Sea Salt & Balsamic Vinegar varieties.
Seabrook provides per-bag figures for its Sea Salted crisps, which help when considering a single packet.
Burrow Hill Cider Vinegar & Sea Salt is a named flavoured variety with published nutrition and ingredient information.
REAL offers named flavoured varieties, but their ingredients and suitability statements still need checking separately.
These options include lightly salted crisps and a Lay’s multipack with Original, Cucumber and Lime flavours. Consider them as crisp or crisp-style snacks away from the immediate pre-run window, rather than as dedicated 5k fuel.
No image available
A lightly salted option for an occasional snack away from the start. KETTLE Chips lists 0.7g salt and 29.5g fat per 100g for Lightly Salted; check the pack size and portion you intend to eat.
No image available
This multipack offers three named flavours for snacking at another time. Check the nutrition and ingredient information for each flavour separately before choosing one around a run.
No image available
A lightly sea-salted crisp option for an occasional snack away from the run. Check this 150g variety’s current nutrition and allergen label rather than applying figures or ingredients from a different Tyrrells flavour.
They are a poor match for the minimal-fat snack described in University College London Hospitals NHS Foundation Trust’s guidance for 60–90 minutes before exercise. The cited crisp varieties contain carbohydrate but also substantial fat per 100g; choose a snack that follows the guidance if you need to eat in that window.
If you still want crisps, choose a flavour you know suits you and read its exact ingredients; no flavour here has an established running-performance advantage. Vinegar and chilli varieties use different seasonings, and named products show that allergens can differ too. Avoid making an unfamiliar flavour your last-minute choice before running.
Compare per 100g to put different pack sizes on the same basis, then check per bag for the portion you plan to eat. KETTLE Chips lists 0.7g salt per 100g for Lightly Salted and 1.6g for Sea Salt & Balsamic Vinegar; Pipers lists 2.1g for Burrow Hill Cider Vinegar & Sea Salt. GOV.UK recommends no more than 6g salt a day for adults across their whole diet.
No. Suitability depends on the exact product: KETTLE Chips describes its Lightly Salted and Sea Salt & Balsamic Vinegar varieties as vegan and gluten-free, while Pipers lists lactose (milk) in Burrow Hill Cider Vinegar & Sea Salt and Tyrrells lists barley malt vinegar in Sea Salt & Vinegar Furrows. Read the current pack’s ingredients and allergen statements before eating.