Ingredient dictionary

Natural onion flavouring on a food label: allergens, diets and other names

Natural onion flavouring is a kind of natural flavouring. Whether it carries an allergen depends on how it was made. Whether it is vegan depends on how it was made. Open Food Facts finds it in 514 products, most often in dressings and sauces.

By Bravoora teamUpdated Sources checked 3 sourcesHow we check

Heads up

for a vegan profile

Does natural onion flavouring contain an allergen?

It depends on how it was made. Open Food Facts does not link natural onion flavouring to an allergen, and Bravoora’s label checker does not read the name as one. The label must name any allergen it carries.

Is natural onion flavouring vegan?

It depends on the make. Some kinds of natural onion flavouring are made with an animal product and a label rarely says which, so a vegan profile gets Heads up. Whether it is vegetarian depends on the make too.

VeganHeads upSome kinds are made with an animal product, and a label rarely says which.
VegetarianHeads upSome kinds are made with an animal product vegetarians avoid, and a label rarely says which.

A pack can differ from the usual recipe: the app reads the label in your hand.

What other names does natural onion flavouring have on a label?

On European labels it is “arôme naturel d'oignon” in French, “natürliches Zwiebelaroma” in German and “aroma natural de cebolla” in Spanish. The other 10 languages are listed below.

French
arôme naturel d'oignon
German
natürliches Zwiebelaroma
Spanish
aroma natural de cebolla
Italian
Aroma di cipolla naturale
Dutch
natuurlijk uienaroma
Portuguese
sabor natural de cebola
Polish
naturalny aromat cebulowy
Swedish
naturlig löksmak
Finnish
luontainen sipuliaromi
Hungarian
természetes hagyma aroma
Romanian
Aromă naturală de ceapă
Croatian
prirodna aroma luka
Turkish
doğal soğan aroması

Which foods contain natural onion flavouring?

Open Food Facts lists natural onion flavouring in the ingredients of 514 products, most often dressings and sauces, ready meals and oily fish. Most of them are sold in France, the United States and Germany.

  • Dressings and sauces107
  • Ready meals64
  • Oily fish22
  • Savoury snacks20
  • Vegetables14
  • Pizzas, pies and quiches14

Products with it, by country of sale: France 294 · United States 87 · Germany 44 · Belgium 36.

Counted on 13 October 2026 from the Open Food Facts product database, which volunteers fill from real packs: it shows where natural onion flavouring turns up, not how much of the market it is.

What kind of ingredient is natural onion flavouring?

In the Open Food Facts ingredient tree, natural onion flavouring sits under natural flavouring and onion flavouring.

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dietitians, doctors and trainers

Sources

An allergen is stated only when two of three checks agree: the Open Food Facts record, Bravoora’s label checker, and the ingredient’s own name or family (oat flour is oats, a cheese is milk). Every name where they disagree waits for a person to review it.

  1. Open Food Facts: Natural onion flavouring
  2. Open Food Facts: ingredients taxonomy (names, family tree, allergen and vegan flags), ODbL
  3. Open Food Facts: product database, 4,535,553 products, read 13 October 2026, ODbL

Contains information from Open Food Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

Create a website profile with the things you avoid and the people you check for.

Build my profile

Save and edit your profile on this website. App transfer is not available yet.