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Onion is a vegetable food — 40 kcal per 100 g, with 1.1 g protein, 9.3 g carbs and 0.1 g fat.

Calories & macros (per 100 g)

Calories
40 kcal
Protein
1.1 g
Carbs
9.3 g
Fat
0.1 g
Fiber
1.7 g

Micronutrients

Vitamin D
0 ug(0% DV)
Calcium
23 mg(2% DV)
Iron
0.21 mg(1% DV)
Potassium
146 mg(3% DV)
Magnesium
10 mg(2% DV)
Zinc
0.17 mg(2% DV)
Selenium
0.5 ug(1% DV)
Vitamin C
7.4 mg(8% DV)
Vitamin A
0 ug(0% DV)
Vitamin B6
0.12 mg(7% DV)
Vitamin B12
0 ug(0% DV)
Folate
19 ug(5% DV)
Thiamin
0.046 mg(4% DV)
Riboflavin
0.027 mg(2% DV)
Niacin
0.116 mg(1% DV)
Vitamin E
0.02 mg(0% DV)
Vitamin K
0.4 ug(0% DV)
Total sugars
4.24 g
Cholesterol
0 mg(0% DV)

Recipes using Onion

Nutrition figures are calculated from USDA FoodData Central records where available, cross-checked and maintained by our team.

These figures are a reference for planning, not medical advice. Check with a qualified professional before making major changes to your diet, especially with an injury or an existing health condition.