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Seaweed

Seaweed is an edible marine algae used fresh, dried, or rehydrated in soups, salads, and other dishes.

Seaweed — illustrative ingredient image

About Seaweed

Seaweed is a general culinary term for edible marine algae, including green, brown, and red varieties. It is used in soups, broths, salads, sushi rolls, side dishes, garnishes, seasonings, and snacks. Different types have different culinary identities, so the word describes a broad group rather than one standardized ingredient.

Flavour can be vegetal, briny, mineral, smoky, or umami-like, while texture may be crisp, tender, chewy, slippery, or gelatinous. Fresh seaweed is often moist and flexible; dried forms are lighter and more concentrated in aroma. Species, harvest stage, salting, roasting, and rehydration all influence the final taste and bite.

Seaweed may be sold as whole fronds, sheets, flakes, strips, granules, or small pieces. Fresh forms can be rinsed and cooked, while dried forms are rehydrated, toasted, crumbled, or added directly to broths. Processing changes colour, moisture, structure, and texture, and some products are salted, seasoned, or pressed into sheets.

Ingredient type
whole food

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Where will you meet it?

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Where seaweed appears

8 linked foods

Find foods to recognise by country and type. Recipes and products vary; these are recorded ingredient connections.

Showing 1–8 of 8

Main dishes

Sides

Soups

Salads

Ingredient connections awaiting review · Coverage is still growing, including packaged snacks.

Name examples awaiting language review. Confirm the specific food or product.

Local names for seaweed

Names and romanised forms to recognise on menus and labels.

English

seaweed

English

seaweed (dried)

Search alias · Not a confirmed translation

English

seaweed (raw)

Search alias · Not a confirmed translation

English

Seaweed, boiled, drained

Search alias · Not a confirmed translation

English

Seaweed, Canadian Cultivated EMI-TSUNOMATA, dry

Search alias · Not a confirmed translation

English

Seaweed, Canadian Cultivated EMI-TSUNOMATA, rehydrated

Search alias · Not a confirmed translation

English

Seaweed, cooked, fat added

Search alias · Not a confirmed translation

English

Seaweed, cooked, no added fat

Search alias · Not a confirmed translation

English

Seaweed, irishmoss, raw

Search alias · Not a confirmed translation

English

Seaweed, kelp, raw

Search alias · Not a confirmed translation

English

Seaweed, laver, raw

Search alias · Not a confirmed translation

English

Seaweed, nori, dried

Search alias · Not a confirmed translation

English

Seaweed, pickled

Search alias · Not a confirmed translation

English

Seaweed, Powder

Search alias · Not a confirmed translation

Available names only. Languages may be spoken in other countries; a name alone does not identify every ingredient in a dish.

Seaweed nutrition & diet

Seaweed nutritional value

Representative benchmark: Seaweed, kelp (kombu, tangle), raw

Representative nutrition benchmarkOfficial table values for a comparable food category, not a laboratory measurement of this exact ingredient.

Per 100 g of 100 g edible portion in the named official reference form.

Calories
43kcal
Protein
1.7g
Carbs
9.6g
Fat
0.6g

Representative benchmark from a comparable official food-composition category; it is not a laboratory measurement of this exact ingredient. The displayed reference form must be considered, and species, cultivar, recipe, brand, processing and preparation can change values.

Portions & preparation

Identify the seaweed genus or commercial variety and whether it is fresh, dried, rehydrated, salted, roasted, powdered, or incorporated into a prepared food. Match the edible portion after any soaking or draining. Seasonings, oils, sauces, and soup ingredients should be assessed separately from plain seaweed.

Compare the right form: Match the specified seaweed variety and edible portion in its exact fresh, dried, rehydrated, salted, roasted, powdered, or prepared form.

Diet considerations

Seaweed is plant-like marine algae, but the exact variety and product form must be established. Plain seaweed may differ from seasoned snacks, salads, broths, or sushi components containing fish, shellfish, eggs, dairy, soy, or cereals. Processing and portion can change carbohydrate patterns and the overall dietary assessment.

AI-authored reading notes · Awaiting editorial review. Measured values, where available, have a separate source above.

Dietary compatibility

  • Vegan
    Typically compatible
  • Vegetarian
    Typically compatible
  • Pescatarian
    Typically compatible
  • Keto
    Depends on the version
  • Paleo
    Typically compatible
  • Low-carb
    Depends on the version
  • Halal
    Not established
  • Kosher
    Not established
What these diet assessments mean
Vegan · Typically compatible
The plain ingredient profile is plant, fungal or mineral based. Added ingredients in a prepared product need a separate check.
Vegetarian · Typically compatible
The plain ingredient profile is plant, fungal or mineral based. Added ingredients in a prepared product need a separate check.
Pescatarian · Typically compatible
The plain ingredient profile is plant, fungal or mineral based. Added ingredients in a prepared product need a separate check.
Keto · Depends on the version
Compatibility depends on the portion and preparation. A sourced carbohydrate amount for a defined serving is not available.
Paleo · Typically compatible
The plain form fits the conventional paleo food groups. Added ingredients and individual interpretations can differ.
Low-carb · Depends on the version
Compatibility depends on the portion and preparation. A sourced carbohydrate amount for a defined serving is not available.
Halal · Not established
Sourcing, processing and any applicable certification have not been verified. A food name alone does not establish halal status.
Kosher · Not established
Sourcing, processing and any applicable certification have not been verified. A food name alone does not establish kosher status.

For the plain ingredient · Awaiting review. Diet compatibility is not allergy suitability or halal/kosher certification. Keto and low-carb depend on the portion.

Reviewed ingredient entryIngredient reference · Preparations vary

AI-generated illustration for visual context. It does not identify a particular product or establish allergen content.

Sources & review

Nutrition reference: Canadian Nutrient File, 2015 — 2204 ↗. Values are scaled from 100 g of the recorded edible form. Individual portions have no assumed fixed weight.

Expanded overview, name examples and nutrition notes are database drafts awaiting editorial review. Numeric nutrition values, where shown, have their own source and food-form reference.

The ingredient description and dish connections come from the draft catalogue and may change after review.

Last recorded verification: .