Cauliflower vs Onion
Calories, macronutrients and nutrition facts compared side by side (per 100g).
Nutrition Comparison
| Per 100g | Cauliflower | Onion |
|---|---|---|
| Calories | 25kcal | 40kcal |
| Protein | 1.9g | 1.1g |
| Carbs | 5g | 9.3g |
| Fat | 0.3g | 0.1g |
| Fiber | 2g | 1.7g |
| Sugar | 1.9g | 4.2g |
| Sodium | 30mg | 4mg |
Green marks the more favorable value (fewer calories/sugar/sodium, more protein/fiber).
Key Takeaways
- Cauliflower has 15 fewer calories per 100g than Onion (60% less).
- Cauliflower delivers more protein (1.9g vs 1.1g per 100g).
- Cauliflower has more fiber (2g vs 1.7g).
- Onion contains less fat (0.1g vs 0.3g).
- Cauliflower has less sugar (1.9g vs 4.2g).
Cauliflower
Cauliflower is part of the cruciferous family, sharing the glucosinolate compounds (including sulforaphane) that have been studied for cancer-protective effects. At 25 kcal per 100g, it's an excellent low-carb stand-in for rice, mashed potatoes, or pizza crust.
View Cauliflower 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 Cauliflower & Onion in Kairo
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