Ingredient

Oil Of Onion

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add oil of onion to provide a strong, savory onion flavor in a …

What is Oil Of Onion?

Oil of onion is a concentrated flavoring derived from onions (Allium cepa). It is typically produced through steam distillation or solvent extraction of onion bulbs, capturing the volatile aromatic compounds responsible for onion's characteristic taste and smell.

Is Oil Of Onion vegan?

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

Is Oil Of Onion gluten-free?

It does not contain gluten.

Is Oil Of Onion a major allergen?

Oil of onion is not derived from any of the 9 FDA major allergens.

What is Oil Of Onion used for?

Manufacturers add oil of onion to provide a strong, savory onion flavor in a concentrated form.

Is Oil Of Onion safe?

In the US, oil of onion is generally recognized as safe (GRAS) by the FDA for use as a flavoring.

Why it's used

Manufacturers add oil of onion to provide a strong, savory onion flavor in a concentrated form. It is often used in processed foods like seasonings, marinades, sauces, and prepared meals where a distinct onion taste is desired without the texture of fresh or dried onion pieces.

Health notes

In the US, oil of onion is generally recognized as safe (GRAS) by the FDA for use as a flavoring. Regulatory bodies like JECFA and EFSA have evaluated similar onion-derived flavorings. At typical consumption levels found in food, it is not associated with adverse health effects. Research into the specific health impacts of concentrated onion oil is limited, but onions themselves contain beneficial compounds.

Allergen info

Oil of onion is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Foods that contain Oil Of 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.