Onion: how many calories?

100 g has about 40 kcal and 1.1 g of protein. A usual portion (1 medium (100 g)) is about 40 kcal.

Group: Vegetables

Onion – nutrition
Nutrition100 g1 medium (100 g)
Energy, kcal4040
Protein, g1.11.1
Fat, g0.10.1
Carbohydrates, g9.39.3
Fibre, g1.71.7

Allergens: none of the 14 EU allergens

Values are approximate (USDA FoodData Central and typical Lithuanian product labels). Products from different makers vary – the exact value is on the pack.

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