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Red Onion

Vegetable
Red Onion
By Foodbe.ai · July 3, 2026

🧬Red onions are not only a flavorful addition to meals but also offer potential health benefits, including anti-inflammatory properties. With 40 calories per 100 grams, they provide antioxidants that may support overall health. Research suggests that the prebiotic qualities of red onions can positively influence gut health, making them a valuable component of various diets, including vegan and paleo.

🧑‍🍳In the kitchen, red onions shine when used raw in salads, salsas, or as a garnish, where their pungent sweetness can enhance the overall flavor profile. They can also be pickled to add a tangy twist to dishes, showcasing their versatility. When selecting red onions, aim for those with fewer ingredients in processed products to ensure you are getting the most natural flavor and health benefits.

🌱 Diets
ketogenicomnivorepaleopescatarianveganvegetarian
🦠 Gut health
prebiotic fodmap
😋 Flavor
pungentsweetsulfuric
♻️ Environmental Impact
🔋 Charging phone 24x🚽 1 toilet flush

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About this article

Foodbe.ai exists to inform consumers about the food they buy and eat. Every claim is cited. Sources: NIH, USDA, FDA, Smithsonian, and JSTOR. Found an error? Email us at admin@foodbe.ai to report any source or fact issues.

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Nutrition per 100g
Calories40
Protein1.1g
Fat0.1g
Sat fat0g
Fiber1.7g
Sugar4.2g
Sodium4mg
Cholesterol0mg
Iron0.2mg
Vitamin C7.4mg
Vitamin D0mcg
AllergensNo major allergens
Storage
Shelf — 6mo
Swaps
White OnionShallotsScallions