Allergen

Mustard on food labels: other names and where it hides

Mustard hides in dressings, mayonnaise, marinades and spice blends, as seed, powder, flour or oil. Labels in the UK, Europe and the Gulf must name it. US labels do not have to, and can fold it into “spices”, so check imported American packs. Bravoora reads mustard, Dijon and piccalilli in the language the label is printed in.

By Bravoora teamUpdated Sources checked 7 sourcesHow we check

A pile of mustard seeds on a white surface.

What are the other names for mustard on a label?

On a label, mustard can also appear as “Mustard seed”, “Mustard flour”, “Dijon”, “Wholegrain mustard” or “Piccalilli”.

Mustard seedMustard flourDijonWholegrain mustardMustardPiccalilliWasabi pasteBrassica juncea

Bravoora knows all of these, and the free label checker finds every one. Try the label checker · How Bravoora decides

Where is mustard found?

  • Salad dressings and mayonnaise are often made with mustard.
  • Marinades, rubs and barbecue sauces often contain it.
  • Pickles and chutneys, including piccalilli, are made with mustard seed.
  • Curry powders and spice blends often include ground mustard.
  • Processed meats, sausages, soups and stock cubes can contain it.

Is mustard a major allergen?

Yes in the UK, Europe and the Gulf, where labels must name mustard. US labels do not have to, so check imported American packs.

AllergenUSUK and EuropeGulf
MustardNot requiredRequiredRequired

Sources checked 22 September 2026. All allergen guides

Which diets and allergies does mustard fit?

For mustard: vegan, vegetarian, dairy-free, gluten-free, peanut-allergy, sesame-allergy, egg-allergy, soy-allergy and caffeine-free profiles get Fits you.

VeganFits youIt comes from a plant.

A packed product can still carry a “may contain” warning, so check the pack.

Does mustard fit you?

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What is mustard?

Mustard is one of the fourteen allergens that must be declared in the UK and the EU, and the Gulf standard GSO 9 lists it too. It is not on the US list, so an imported American product can contain it without naming it in the way a British one would — which matters in a Gulf supermarket where both sit on the same shelf.

How does Bravoora check for mustard?

Bravoora looks for mustard in every form, including the seed, the powder, the flour and the oil, in the language the label is printed in, and keeps “contains” and “may contain” apart.

How Bravoora decides, in full

More questions about mustard

Who looks out for mustard?

Mustard matters most to people with a mustard allergy, and anyone whose profile avoids mustard.

Is mustard vegan?

Yes. It comes from a plant.

Sources and how to cite this guide

  1. UK Food Standards Agency: Allergen guidance
  2. EU Regulation 1169/2011 (food information)
  3. US FDA: Questions and Answers Regarding Food Allergen Labeling, Edition 5 (January 2025)
  4. FARE: Update to FDA guidance for food allergen labeling (tree nuts and coconut, January 2025)
  5. GCC Standardization Organization: GSO 9:2022, labelling of prepackaged food (current edition)
  6. GCC Standardization Organization: GSO 9/2013 English text, clause 5.2.5 (the allergen list as published)
  7. FAO/WHO international food labelling standard (CXS 1-1985, revised 2024)

To cite this guide: Bravoora, “Mustard on food labels: other names and where it hides”, bravoora.app/ingredients/mustard/, updated 12 October 2026.

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General information, not medical advice. Rules differ by country and products change, so always check the pack.

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