Sautéed red onion: calories and nutrition facts

Sautéed red onion has 42 kcal per 100 g. One serving, 1 serving (80 g), has 33 kcal.

Calories: 42 kcal
Protein: 1.7 g
Carbohydrates: 7.6 g
Fat: 0.3 g

Per 100 g

Sautéed red onion: how many calories?

Sautéed red onion has 42 kcal per 100 g, with 1.7 g protein, 7.6 g carbs and 0.3 g fat. A 80 g serving (1 serving) has 33 kcal. That is less than the average for Fruits & Veggies (109 kcal per 100 g). Most of its calories come from carbohydrates.

Where the calories come from

Protein17%
Carbohydrates76%
Fat7%

Calculate a portion

Amountg

Calories: 33 kcal
Protein: 1.4 g
Carbohydrates: 6 g
Fat: 0.2 g

Nutrition facts

Nutrient	Per 100 g	Per serving (80 g)
Calories	42 kcal	33 kcal
Fat	0.3 g	0.2 g
of which saturated fat	0 g	0 g
Carbohydrates	7.6 g	6 g
of which sugars	6.7 g	5.4 g
Fiber	2.1 g	1.7 g
Protein	1.7 g	1.4 g
Sodium	5 mg	4 mg
Water	87.9 g	70.3 g
Vitamin C	5.7 mg	4.5 mg
Calcium	26 mg	21 mg
Iron	0.3 mg	0.2 mg
Potassium	220 mg	176 mg
Magnesium	10 mg	8 mg

Source: Ciqual food composition table (ANSES, France). Data updated on 2 September 2026.

Share of reference intakes

Per 100 g, compared with an adult's reference intakes (2,000 kcal a day, Regulation (EU) No 1169/2011).

Nutrient	Of reference intake
Calories(42 kcal)	2%
Fat(0.3 g)	0%
of which saturated fat(0 g)	0%
Carbohydrates(7.6 g)	3%
of which sugars(6.7 g)	7%
Protein(1.7 g)	3%
Salt(0.01 g)	0%

What the EU thresholds say

Nutrition claim thresholds from Regulation (EC) No 1924/2006, per 100 g.

Source of protein (at least 12% of calories)
Low fat (3 g or less)
Low sodium (120 mg or less)

Sautéed red onion: frequently asked questions

Sautéed red onion: how many calories per serving?

A 80 g serving (1 serving) has 33 kcal.

Sautéed red onion: how much protein?

Sautéed red onion contains 1.7 g of protein per 100 g, 3% of the 50 g reference intake.

Sautéed red onion: how much fibre?

Sautéed red onion provides 2.1 g of fibre per 100 g, 8% of the 25 g a day recommended by EFSA.

Sautéed red onion: how much makes 100 kcal?

100 kcal is about 241 g of this food.

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