Beetroot vs Onion
Calories, macronutrients and nutrition facts compared side by side (per 100g).
Nutrition Comparison
| Per 100g | Beetroot | Onion |
|---|---|---|
| Calories | 43kcal | 40kcal |
| Protein | 1.6g | 1.1g |
| Carbs | 9.6g | 9.3g |
| Fat | 0.2g | 0.1g |
| Fiber | 2.8g | 1.7g |
| Sugar | 6.8g | 4.2g |
| Sodium | 78mg | 4mg |
Green marks the more favorable value (fewer calories/sugar/sodium, more protein/fiber).
Key Takeaways
- Onion has 3 fewer calories per 100g than Beetroot (8% less).
- Beetroot delivers more protein (1.6g vs 1.1g per 100g).
- Beetroot has more fiber (2.8g vs 1.7g).
- Onion contains less fat (0.1g vs 0.2g).
- Onion has less sugar (4.2g vs 6.8g).
Beetroot
Beetroot is rich in dietary nitrates, which the body converts to nitric oxide — a reason beet juice is studied for blood pressure and exercise performance. It also supplies folate, manganese and the pigment betalain.
View Beetroot nutrition →Onion
Onions are low in calories and a notable source of quercetin, an antioxidant flavonoid, plus prebiotic fibers that feed gut bacteria. Their sulfur compounds — released when chopped — are being studied for cardiovascular benefits.
View Onion nutrition →Track Beetroot & Onion in Kairo
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