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Romaine lettuce

Romaine lettuce has elongated upright heads, crisp leaves and a firm pale rib, suitable for salads and sandwiches or grilling and braising.

Romaine lettuce — illustrative ingredient image

About Romaine lettuce

Romaine lettuce is a leafy lettuce variety with elongated, upright heads and crisp leaves. It is eaten raw in salads and sandwiches and may also be cooked, for example by grilling or braising. The name does not specify a cultivar, growing conditions, or whether the outer leaves have been removed.

Leaves are usually green, with a firm pale central rib and a crisp texture; flavour is mild and slightly bitter. Romaine is commonly sold as whole heads, hearts, or separated leaves. Nutrition comparisons depend on which leaves are included and whether the lettuce is raw or cooked, as preparation changes water content.

Ingredient type
whole food

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Where romaine lettuce appears

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

Local names for romaine lettuce

Names and romanised forms to recognise on menus and labels.

English

Romaine lettuce, raw

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.

Romaine lettuce nutrition & diet

Romaine lettuce nutritional value

Lettuce, cos or romaine, raw

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

Calories
17kcal
Protein
1.2g
Carbs
3.3g
Fat
0.3g

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

Outer leaves, hearts, and inner leaves can differ in colour and composition. Raw and cooked lettuce also differ in water content and should be compared in matching forms.

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 — Lettuce, cos or romaine, 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: .