Onion Nutrition Facts: Calories, Macros & Health Benefits
Summary: One quarter cup (40g) of onion contains 19 calories, 0.5g protein, 4.4g carbs, and 0.0g fat. Onion is a good source of essential vitamins and minerals.
Nutrition Facts — quarter cup (40g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 19 kcal | 1% |
| Protein | 0.52g | 1% |
| Carbohydrates | 4.4g | 2% |
| Total Fat | 0.04g | 0% |
| Fiber | 0.80g | 3% |
| Sugar | 2.0g | -- |
| Sodium | 2.0mg | 0% |
| Potassium | 68.8mg | 1% |
| Calcium | 10.8mg | 1% |
| Iron | 0.10mg | 1% |
| Magnesium | 4.8mg | 1% |
| Zinc | 0.08mg | 1% |
| Vitamin C | 3.0mg | 3% |
| Vitamin B6 | 0.05mg | 3% |
| Folate | 7.6mcg | 2% |
| Vitamin K | 0.20mcg | 0% |
| Phosphorus | 13.6mg | 1% |
Is Onion Good for You?
Onion provides 19 calories per quarter cup (40g) with 0.5g of protein, 4.4g of carbohydrates, and 0.0g of fat. It is a source of essential vitamins and minerals.
Key Health Benefits of Onion
- Good source of essential vitamins and minerals
Frequently Asked Questions
How many calories is in onion?
One quarter cup (40g) of onion contains 19 calories.
How much protein is in onion?
One quarter cup (40g) of onion provides 0.5g of protein.
Is onion vegetarian?
Yes, onion is suitable for vegetarian diets.
Is onion vegan?
Yes, onion is completely plant-based and vegan-friendly.
Is onion gluten-free?
Yes, onion is naturally gluten-free.
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Nutrition data sourced from USDA FoodData Central. Track onion and thousands of other foods with the Gram app.