Ingredient

Onion Red

Source
Not animal-derived
Allergen
No
Role in food
Red onions are primarily used as a flavoring ingredient, adding a pungent and slightly …

What is Onion Red?

Red onions are a variety of the onion (Allium cepa) distinguished by their deep purple skin and flesh. They are grown worldwide and are a staple vegetable in many cuisines. Red onions are typically eaten raw or cooked, adding a mild, sweet flavor and vibrant color to dishes.

Is Onion Red vegan?

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

Is Onion Red gluten-free?

Onions are not related to the 9 FDA major allergens and do not contain gluten.

Is Onion Red a major allergen?

Not a major allergen.

What is Onion Red used for?

Red onions are primarily used as a flavoring ingredient, adding a pungent and slightly sweet taste to a wide variety of foods.

Is Onion Red safe?

Red onions are generally recognized as safe (GRAS) by the FDA when used as a food ingredient.

Why it's used

Red onions are primarily used as a flavoring ingredient, adding a pungent and slightly sweet taste to a wide variety of foods. They are commonly found in salads, sandwiches, salsas, dips, and as a garnish. Their attractive color also makes them a visually appealing addition to many dishes.

Health notes

Red onions are generally recognized as safe (GRAS) by the FDA when used as a food ingredient. They are a source of antioxidants and other beneficial plant compounds. While generally considered healthy, some individuals may experience digestive upset from raw onions. Regulatory bodies like EFSA have not specifically evaluated red onions as a distinct food additive, as they are a whole food.

Allergen info

Not a major allergen. Onions are not related to the 9 FDA major allergens and do not contain gluten.

Foods that contain Onion Red

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Last updated: October 5, 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.