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Choy sum

Choy sum is a leafy Asian brassica harvested with tender stems, leaves, and often yellow flower buds, commonly stir-fried, steamed, or added to soups.

Choy sum — illustrative ingredient image

About Choy sum

Choy sum is a leafy Asian brassica vegetable harvested with tender stems, leaves, and often small yellow flower buds. It is typically green, with crisp stems and soft leaves, and has a mild, slightly mustard-like flavour.

The vegetable is commonly stir-fried, steamed, or added to soups, with the stems and leaves often cooked together. It is sold fresh in bunches; the maturity of the plant affects stem firmness and the presence of flower buds.

Ingredient type
whole food

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Where choy sum appears

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

Local names for choy sum

Names and romanised forms to recognise on menus and labels.

English

choy sum

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

Choy sum nutrition & diet

Choy sum nutritional value

Reference: Cabbage, Chinese flowering, raw

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

Calories
17kcal
Protein
1.3g
Carbs
0.9g
Fat
0.3g

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

Comparisons should identify whether the sample includes stems, leaves, and flower buds and whether it is raw or cooked, since these affect water content and 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: Australian Food Composition Database, Release 3 — F001990 ↗. 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: .