NutariVegetable comparison
Onion vs Spinach
Spinach is lower in calories (23 vs 40 kcal per 100g) — 17 kcal less than Onion. Spinach has more protein (2.9g vs 1.1g per 100g). For weight management, Spinach is usually the more filling choice here — it has fewer calories, more protein and more fibre.
All figures are per 100g, typical values for the common edible portion.
Nutrition compared (per 100g)
| Nutrient | Onion | Spinach | Difference |
|---|---|---|---|
| Calories | 40 | 23 | 17 kcal more in Onion |
| Protein | 1.1g | 2.9g | 1.8g less in Onion |
| Carbs | 9.3g | 3.6g | 5.7g more in Onion |
| Fat | 0.1g | 0.4g | 0.3g less in Onion |
| Fibre | 1.7g | 2.2g | 0.5g less in Onion |
Onion vs Spinach FAQ
- Does Onion or Spinach have more calories?
- Onion has more calories: 40 kcal vs 23 kcal per 100g.
- Which has more protein, Onion or Spinach?
- Spinach has more protein: 2.9g vs 1.1g per 100g.
- Is Onion or Spinach better for weight loss?
- Spinach is usually the more filling choice here — it has fewer calories, 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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