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Onions

Onions are edible bulbs available fresh or processed, with variety-dependent colour, pungency and sweetness; they add flavour raw or become softer and sweeter when cooked.

Onions — illustrative ingredient image

About Onions

Onions are edible bulbs of the onion plant, sold whole in varieties with yellow, white, red, or other coloured skins. They are available fresh and may also be sold chopped, frozen, dried, or powdered; those processed forms are not equivalent to the raw bulb.

Raw onion is crisp and juicy, with a pungent, sharp flavour that can become sweeter and softer when cooked. Bulbs are used widely as a vegetable and flavouring, cooked or raw. Their size, skin colour, pungency, and sweetness vary by variety and growing conditions.

Ingredient type
other

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Where onions appears

237 linked foods

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Main dishes

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 onions

Names and romanised forms to recognise on menus and labels.

English

small white onions

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.

Onions nutrition & diet

Onions nutritional value

Onions, raw

Per 100 g of the edible portion in the recorded USDA food form.

Calories
40kcal
Protein
1.1g
Carbs
9.3g
Fat
0.1g

Reference values for the displayed USDA form. Varieties, brands and preparation can differ.

Raw bulb, cooked onion, and dried or powdered onion differ in moisture concentration; compare matching forms and account for cooking or added ingredients.

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: USDA FoodData Central — Onions, raw ↗. 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: .