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Ingredient dictionary

Flounder on a food label: it contains fish

Flounder is a kind of flat fish. It contains fish, so the allergen labelling rules apply. It is not vegan. Open Food Facts finds it in 87 products, most often in fish and seafood.

By Bravoora teamUpdated Sources checked 7 sourcesHow we check

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Flounder=fish

Does flounder contain an allergen?

Yes. Flounder contains fish: labels in the US, the UK, Europe and the Gulf must declare it.

AllergenUSUK and EuropeGulf
FishRequiredRequiredRequired

Read the fish guide

Is flounder vegan?

No. Flounder is not vegan: it comes from an animal. It is not vegetarian either.

VeganNot for youNot vegan: it comes from an animal.
VegetarianNot for youIt comes from fish or shellfish.
Fish allergyNot for youIt contains fish.

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

What other names does flounder have on a label?

On European labels it is “flet” in French, “Flunder” in German and “passera” in Italian. The other 6 languages are listed below.

French
flet
German
Flunder
Italian
passera
Dutch
Bot
Portuguese
Linguado
Polish
Flądra
Finnish
kampela
Croatian
iverak, Platichthys flesus
Turkish
Bayağı pisi balığı

Which foods contain flounder?

Open Food Facts lists flounder in the ingredients of 87 products, most often fish and seafood and ready meals. Most of them are sold in the United States, Poland and the Netherlands.

  • Fish and seafood68
  • Ready meals2

Products with it, by country of sale: United States 52 · Poland 1 · Netherlands 1.

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

What kind of ingredient is flounder?

In the Open Food Facts ingredient tree, flounder sits under flat fish and white fish.

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: Flounder
  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
  4. European Union: Regulation 1169/2011 on food information to consumers, Annex II
  5. UK Food Standards Agency: Allergen guidance for food businesses (the 14 allergens)
  6. US FDA: Questions and Answers Regarding Food Allergen Labeling, Edition 5 (January 2025)
  7. Wikipedia: Flounder

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

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