Ingredient

Leeks

Source
Not animal-derived
Allergen
No
Role in food
Leeks are used as a vegetable in cooking, providing a mild, sweet onion flavour. …

What is Leeks?

Leeks are a member of the Allium genus, related to onions and garlic. They are a hardy biennial plant, grown as an annual vegetable. The edible part is the leaf sheaths, which are white and pale green, forming a cylindrical stalk.

Is Leeks vegan?

Leeks is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Leeks a major allergen?

Leeks are not one of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Leeks used for?

Leeks are used as a vegetable in cooking, providing a mild, sweet onion flavour.

Is Leeks safe?

Leeks are a whole food and not a food additive.

Why it's used

Leeks are used as a vegetable in cooking, providing a mild, sweet onion flavour. They are often found in soups, stews, pies, and gratins, adding depth and aroma to savoury dishes. Manufacturers use them for their characteristic flavour and texture.

Health notes

Leeks are a whole food and not a food additive. They are a source of fibre and various vitamins and minerals. As part of a balanced diet, leeks contribute to overall nutrient intake.

Allergen info

Leeks are not one of the 14 major allergens that UK law requires to be emphasised on food labels. Not a major allergen.

Foods that contain Leeks

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.