Onion: calories and macros

40 kcal per 100 g · ½ onion (75 g): 30 kcal. Most of its energy comes from carbohydrates (88%).

30kcal for 75 g
Fat
0.1 g
2% of energy
Carbs
7 g
88% of energy
Protein
0.8 g
10% of energy
Fibre
1.3 g

Nutrition facts

Per 100 gPer serving (75 g)
Energy40 kcal30 kcal
Fat0.1 g0.1 g
Carbohydrate9.3 g7 g
· Fibre1.7 g1.3 g
Protein1.1 g0.8 g

Approximate reference values (USDA FoodData Central). In the app these generic foods carry an “approx.” tag; packaged products use their label data.

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