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Vegetable comparison

Onion vs Sweet Potato

Onion is lower in calories (40 vs 86 kcal per 100g) — 46 kcal less than Sweet Potato. Sweet Potato has more protein (1.6g vs 1.1g per 100g). For weight management, Sweet Potato 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)

NutrientOnionSweet PotatoDifference
Calories408646 kcal less in Onion
Protein1.1g1.6g0.5g less in Onion
Carbs9.3g20.1g10.8g less in Onion
Fat0.1g0.1g
Fibre1.7g3g1.3g less in Onion

Onion vs Sweet Potato FAQ

Does Onion or Sweet Potato have more calories?
Sweet Potato has more calories: 40 kcal vs 86 kcal per 100g.
Which has more protein, Onion or Sweet Potato?
Sweet Potato has more protein: 1.6g vs 1.1g per 100g.
Is Onion or Sweet Potato better for weight loss?
Sweet Potato 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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