Food database › Vegetable › Red Onion
How many calories in a red onion?
44 calper 1 medium (110 g)
A serving of red onion — 1 medium (110 g) — has about 44 calories, with 1.2 g protein, 10.2 g carbs and 0.1 g fat, plus 1.9 g fiber.
Where those calories come from:
Protein 10%Carbs 88%Fat 2%
| Nutrient | Per serving (1 medium (110 g)) | Per 100 g |
|---|---|---|
| Calories | 44 cal | 40 cal |
| Protein | 1.2 g | 1.1 g |
| Carbs | 10.2 g | 9.3 g |
| of which sugars | 4.6 g | 4.2 g |
| Fat | 0.1 g | 0.1 g |
| Fiber | 1.9 g | 1.7 g |
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Red Onion calories — FAQ
How many calories are in a red onion?
1 medium (110 g) of red onion contains about 44 calories. That's roughly 40 calories per 100 grams.
How much protein is in a red onion?
One serving (1 medium (110 g)) has about 1.2 g of protein, 10.2 g of carbs and 0.1 g of fat.
Is red onion good for weight loss?
Red Onion can fit a weight-loss plan when it's logged and kept within your calorie budget. At 44 calories per serving, the key is tracking your total daily intake — that's what Nourish makes effortless.
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