Vegetables · Nutrition Facts
Onion Nutrition Facts
Onions are versatile vegetables known for their pungent flavor and health benefits. They are rich in antioxidants and contain vitamins and minerals that support overall health.
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40kcal
Calories
1.1g
Protein
9.3g
Carbs
0.1g
Fat
Where the calories come from
Full nutrition breakdown
Nutrition Facts
Per 100g · Per serving (1 medium onion, 89g)
| Nutrient | Per 100g | Per serving |
|---|---|---|
| Calories | 40kcal | 35.6kcal |
| Protein | 1.1g | 1g |
| Total Carbohydrates | 9.3g | 8.3g |
| Dietary Fiber | 1.7g | 1.5g |
| Sugars | 4.2g | 3.7g |
| Total Fat | 0.1g | 0.1g |
| Saturated Fat | 0.04g | 0g |
| Sodium | 4mg | 3.6mg |
| Water | 89.1g | 79.3g |
Adjust the serving size
Estimate nutrients in a portion of Onion. The calculation scales the values shown per 100 g; it is not a measurement of a specific food or product.
Listed serving: 1 medium onion (89 g). Enter 1–5000 g.
- Calories
- 35.6 kcal
- Protein
- 0.98 g
- Carbohydrates
- 8.28 g
- Fiber
- 1.51 g
- Sugars
- 3.74 g
- Fat
- 0.09 g
- Sodium
- 3.56 mg
Estimate only. Food varieties, brands, preparation, and actual portion weights can change the values. Use product packaging for packaged foods.
Key vitamins & minerals
8% Daily Value
5% Daily Value
7% Daily Value
2% Daily Value
1% Daily Value
Serving ideas
- Slice raw and add to sandwiches or salads.
- Roast with other vegetables for a tasty side dish.
- Chop finely and mix into scrambled eggs.
Storage
Storage tip: Store onions in a cool, dry place to maintain their flavor and prevent spoilage.
Record status
This page presents a record from our public dataset. It has not been independently verified by a nutrition professional.
Source context
No exact USDA record match has been verified for this food. Search results may include candidates that do not match the exact record or values shown. Read our methodology.
Correction status
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Frequently asked questions
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