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Ingredient dictionary

Seaweed on a food label: allergens, diets and other names

Seaweed is a kind of algae. It is not one of the allergens that labels must declare. It is vegan. Open Food Facts finds it in 3,790 products, most often in ready meals.

By Bravoora teamUpdated 13 October 2026Sources checked 13 October 20264 sourcesHow we check

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Does seaweed contain an allergen?

Seaweed is not one of the allergens that food labels must declare in the US, the UK, Europe or the Gulf. Open Food Facts does not link it to an allergen, and Bravoora’s label checker does not read the name as one.

Is seaweed vegan?

Yes. Seaweed is vegan and vegetarian: Open Food Facts records nothing from an animal in it.

VeganFits youNothing from an animal, by the Open Food Facts record.

VegetarianFits youNothing from an animal, by the Open Food Facts record.

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

What other names does seaweed have on a label?

On European labels it is “algue marine” in French, “Seetang” in German and “Macroalga” in Spanish. The other 10 languages are listed below.

French: algue marine
German: Seetang
Spanish: Macroalga, alga marina
Italian: Fucales
Dutch: zeewier
Portuguese: macroalga
Polish: Wodorosty, algi morskie
Swedish: tång, havstång
Danish: tang
Norwegian: tang
Finnish: Merilevä
Czech: mořské řasy
Croatian: morska trava, morske alge

Which foods contain seaweed?

Open Food Facts lists seaweed or a more specific kind of it in the ingredients of 3,790 products, most often ready meals, fish and seafood and pasta, rice and flour. Most of them are sold in the United States, France and the United Kingdom.

Ready meals763
Fish and seafood343
Pasta, rice and flour185
Savoury snacks146
Dressings and sauces87
Biscuits and cakes74

Products with it, by country of sale: United States 1,745 · France 988 · United Kingdom 238 · Germany 179.

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

What kind of ingredient is seaweed?

Seaweed is a kind of algae.

Kinds of seaweedKelp Sea lettuce Seaweed extract Laver Thongweed Dehydrated seaweed GlasswortFucusIrish mossAscophyllumTsunomataSeaweed caviar

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.

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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