How Many Calories in Onion?
One serving of onion contains approximately 44 calories. Per 100 grams, onion has 40 calories. Below you'll find the complete nutrition breakdown including protein, carbs, fat, and...
Quick Answer
One serving of onion has approximately 44 calories, or 40 calories per 100 grams.
Key Takeaways
- ✓Calories: 44 kcal (40 kcal per 100g)
- ✓Protein: 1g (0.9g per 100g)
- ✓Carbs: 9g (8.2g per 100g)
- ✓Fat: 0g (0g per 100g)
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Onion Nutrition Facts
| Nutrient | Per Serving | Per 100g |
|---|---|---|
| Calories | 44 kcal | 40 kcal |
| Protein | 1g | 0.9g |
| Carbs | 9g | 8.2g |
| Fat | 0g | 0g |
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Frequently Asked Questions
How many calories are in onion?
One serving of onion has approximately 44 calories, or 40 calories per 100 grams.
Is onion high in calories?
onion is considered low in calories at 40 calories per 100g.
How many calories are in onion per 100g?
Per 100 grams, onion contains 40 calories.
Can I eat onion on a calorie deficit?
Yes, you can eat onion on a calorie deficit as long as it fits within your daily calorie goal. A serving has 44 calories.
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Try Free Food Scanner →This information is for educational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider before making dietary changes.