Is it ultra-processed?
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Is Tesco Mayo-maize ultra-processed?

250ml Mayonnaises Sold in Ireland and France

Pack of Tesco Mayo-maize

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:

  • 17 ingredients
  • 5 additives
  • Nutri-Score D

Less processed mayonnaises

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

dressing made from rapeseed oil, glucose fructose syrup, modified maize starch, ingredients water, rapeseed oil, glucose-fructose syrup, modified maize starch, spirit vinegar, sugar, salt, lactic acid, citric acid, potassium sorbate, mustard seeds, xanthan gum, guar gum, turmeric powder

Additives: E202 Potassium sorbate , E270 Lactic acid , E330 Citric acid , E412 Guar gum , E415 Xanthan gum

As written on the pack

dressing made from rapeseed oil, glucose fructose syrup and modified maize starch, ingredients water, rapeseed oil, glucose-fructose syrup, modified maize starch, spirit vinegar, sugar, salt, acidity regulators (lactic acid, citric acid), preservative (potassium sorbate), mustard seeds, stabilisers (xanthan gum, guar gum), turmeric powder.

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.

  • E412 Guar gum Guar gum is a thickener ground from the seeds of the guar plant.
  • E415 Xanthan gum Xanthan gum is a thickener made by fermenting sugar with the bacterium Xanthomonas campestris.
  • Modified starch Modified starch is starch altered physically, with enzymes or chemically, so that it thickens, gels or survives freezing and heating better than ordinary starch.

Substances rarely used in home kitchens

Refined or extracted in factories, such as syrups made from starch or isolated proteins. The other hallmark of ultra-processed food.

  • Glucose Glucose, usually listed as glucose syrup, is cheap, keeps products moist and stops sugar from crystallising.
  • Fructose Fructose is the sugar found naturally in fruit and honey, but as an ingredient it is refined industrially, mostly from corn starch.
4 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.

  • E202 Potassium sorbate Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.
  • Salt Salt, added for taste and preservation.
  • Starch Starch extracted from cereals or potatoes, used to thicken.
  • Sugar Sugar refined from sugar cane or beet.

How the NOVA groups work

Among 239 mayonnaises

From least to most processed, this one ranks 220th. 72% of the mayonnaises 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 239 mayonnaises, least processed first

About this information

  • Data from this product on Open Food Facts (barcode 5057373870926, last edited 9 September 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 D (from A, best, to E).
  • General information, not medical or dietary advice. Check the pack if you have an allergy.