Non-starchy vegetables and aromatics
Onion
One Basic Food with 3 source-backed nutrition variations. Choose the description that matches what you have.
Portion contract
Food-specific weights only
These are the approved portion buckets. A non-weight option is enabled only after its gram value has been verified for this food.
1 whole when applicable1/2 cup1 cup100 g
Nutrition variations
Which onion do you have?
BasicUSDA FoodData Central Foundation Foods 04/2026
Onions, Red, Raw
Calories44Protein0.9gCarbs9.9gFat0.1g
Variation 2USDA FoodData Central Foundation Foods 04/2026
Onions, White, Raw
Calories35Protein0.9gCarbs7.7gFat0.1g
Variation 3USDA FoodData Central Foundation Foods 04/2026
Onions, Yellow, Raw
Calories38Protein0.8gCarbs8.6gFat0.1g

