Is it ultra-processed?
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Is Marks & Spencers Chunky chips ultra-processed?

1 kg Chips and fries Sold in the United Kingdom

Pack of Marks & Spencers Chunky chips

Yes, it's ultra-processed

  1. 1 Unprocessed
  2. 2 Kitchen staple
  3. 3 Processed
  4. 4 Ultra-processed

Signs of ultra-processing in its ingredients:

  • 9 ingredients
  • 1 additive
  • Nutri-Score B

Less processed chips and fries

Less processed isn't automatically healthier, so compare the labels for what matters to you, such as sugar or salt.

Ingredients

Ultra-processing Processing signs are highlighted

Potatoes 92%, Vegetable Oil (Rapeseed Vegetable Oil, Sunflower Vegetable Oil), Maize Flour Potato Starch, Cornflour Rice Flour Broad Bean Flour, Salt, Dextrose Stabiliser (Xanthan Gum)

Additives: E415 Xanthan gum

As written on the pack

Potatoes (92%) Vegetable Oil (Rapeseed/ Sunflower) Maize Flour Potato Starch. Cornflour Rice Flour Broad Bean Flour. Salt - Dextrose Stabiliser: Xanthan Gum, Suitable for vegans

What makes it ultra-processed

Cosmetic additives

Added to change how the food looks, feels or tastes, not to keep it safe. A hallmark of ultra-processed food.

  • E415 Xanthan gum Xanthan gum is a thickener made by fermenting sugar with the bacterium Xanthomonas campestris.
2 ingredients that would only make it processed

Kitchen staples like sugar, salt and oil. On their own they make a food processed, not ultra-processed.

  • Salt Salt, added for taste and preservation.
  • Vegetable oil Vegetable oils are pressed or extracted from seeds, nuts and fruits.

How the NOVA groups work

Among 1,586 chips and fries

From least to most processed, this one ranks 639th. 65% of the chips and fries here are ultra-processed.

Ranked by NOVA group, then by the number of ultra-processing signs, additives and ingredients. Our ordering, not part of NOVA.

All 1,586 chips and fries, least processed first

About this information

  • Data from this product on Open Food Facts (barcode 00585781, last edited 14 August 2026), available under the Open Database License. If something is wrong or the recipe has changed, you can correct it there.
  • Photo: Open Food Facts contributors, CC BY-SA 3.0.
  • The NOVA group is an automated estimate from crowdsourced data: a missing or mistyped ingredient can change it.
  • NOVA measures processing, not nutrition. For nutrition, Open Food Facts gives this product a Nutri-Score of B (from A, best, to E).
  • General information, not medical or dietary advice. Check the pack if you have an allergy.