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Porphyra yezoensis

Porphyra yezoensis is an edible red seaweed processed into nori sheets, commonly toasted for wrapping, garnishing or seasoning, or rehydrated.

Porphyra yezoensis — illustrative ingredient image

About Porphyra yezoensis

Porphyra yezoensis is an edible red seaweed used in Japanese nori production. It is cultivated, harvested and processed into thin sheets that are commonly toasted and used as a wrapping, garnish or seasoning; dried sheets are also rehydrated for some preparations.

Unprocessed seaweed is thin and pliable, while dried sheets are brittle and toasted sheets become crisp, with a savoury, marine flavour. Whole dried sheets, toasted sheets and seasoned packaged forms differ in moisture, salt and added ingredients, so the name alone does not specify a single edible form.

Ingredient type
whole food

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Where porphyra yezoensis appears

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

Local names for porphyra yezoensis

Names and romanised forms to recognise on menus and labels.

Chinese

紫菜

Zǐcài

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

Porphyra yezoensis nutrition & diet

Porphyra yezoensis nutritional value

Reference: Laver, nori

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

Calories
212kcal
Protein
28.1g
Carbs
47.9g
Fat
0.9g

Official national food-composition reference. The displayed food form is part of the estimate; cultivar, recipe, brand, processing and preparation can change values.

Nutrition comparisons should distinguish raw seaweed from dried, toasted or seasoned sheets, since water loss and added oil or salt change the measured composition.

Dietary compatibility

  • Vegan
    Not established
  • Vegetarian
    Not established
  • Pescatarian
    Not established
  • Keto
    Not established
  • Paleo
    Not established
  • Low-carb
    Not established
  • Halal
    Not established
  • Kosher
    Not established
What these diet assessments mean
Vegan · Not established
The available profile does not establish the full composition or processing for this dietary pattern.
Vegetarian · Not established
The available profile does not establish the full composition or processing for this dietary pattern.
Pescatarian · Not established
The available profile does not establish the full composition or processing for this dietary pattern.
Keto · Not established
A defined serving and sourced carbohydrate data are needed before assessing this dietary pattern.
Paleo · Not established
The ingredient form and processing have not been assessed against this dietary pattern.
Low-carb · Not established
A defined serving and sourced carbohydrate data are needed before assessing this dietary pattern.
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: Taiwan FDA Nutrition Information Database — F0210101 ↗. 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: .