Ingredient

Spanish Onion

Source
Not animal-derived
Allergen
No
Role in food
Spanish onions are primarily used as a food ingredient for their mild, sweet flavor …

What is Spanish Onion?

The Spanish onion is a large, mild, and sweet variety of the common onion (Allium cepa). It is believed to have originated in the United States, not Spain, and is typically grown from seed. Spanish onions are characterized by their thin, papery skin and juicy, white flesh.

Is Spanish Onion vegan?

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

Is Spanish Onion gluten-free?

They do not contain gluten.

Is Spanish Onion a major allergen?

Onions are not one of the nine major allergens designated by the FDA.

What is Spanish Onion used for?

Spanish onions are primarily used as a food ingredient for their mild, sweet flavor and crisp texture.

Is Spanish Onion safe?

Spanish onions are a vegetable and are generally recognized as safe (GRAS) by the FDA when used as food.

Why it's used

Spanish onions are primarily used as a food ingredient for their mild, sweet flavor and crisp texture. They are often eaten raw in salads and sandwiches, or cooked in dishes like stir-fries, soups, and casseroles. Their sweetness also makes them suitable for caramelizing.

Health notes

Spanish onions are a vegetable and are generally recognized as safe (GRAS) by the FDA when used as food. They contain various nutrients and beneficial plant compounds. International bodies like the WHO/IARC have not classified onions as carcinogenic. At typical dietary intakes, they are considered safe and part of a healthy diet.

Allergen info

Onions are not one of the nine major allergens designated by the FDA. They do not contain gluten.

Foods that contain Spanish Onion

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.