NutariVegetable comparison
Onion vs Tomato
Tomato is lower in calories (18 vs 40 kcal per 100g) — 22 kcal less than Onion. Onion has more protein (1.1g vs 0.9g per 100g). For weight management, Onion is usually the more filling choice here — it has more protein and more fibre.
All figures are per 100g, typical values for the common edible portion.
Nutrition compared (per 100g)
| Nutrient | Onion | Tomato | Difference |
|---|---|---|---|
| Calories | 40 | 18 | 22 kcal more in Onion |
| Protein | 1.1g | 0.9g | 0.2g more in Onion |
| Carbs | 9.3g | 3.9g | 5.4g more in Onion |
| Fat | 0.1g | 0.2g | 0.1g less in Onion |
| Fibre | 1.7g | 1.2g | 0.5g more in Onion |
Onion vs Tomato FAQ
- Does Onion or Tomato have more calories?
- Onion has more calories: 40 kcal vs 18 kcal per 100g.
- Which has more protein, Onion or Tomato?
- Onion has more protein: 1.1g vs 0.9g per 100g.
- Is Onion or Tomato better for weight loss?
- Onion is usually the more filling choice here — it has more protein and more fibre, which can help with weight loss. Total intake still matters most.
Values are typical estimates and vary by brand, ripeness, cut and preparation. Log either food in one tap with the Nutari app for your exact portion.
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