Calories
40kcal
Protein
1.1g
Protein / 100 kcal
2.8g
Total fat
0.1g
Values per 100 g edible portion
Onion, raw is a vegetables food. A 100 g edible portion provides 40 calories, 1.1 g of protein, 9.3 g of carbohydrate and 0.1 g of fat. That works out to 2.8 g of protein per 100 calories. By its ingredients it is vegan, gluten-free and dairy-free. All figures are per 100 g and trace to USDA FoodData Central.
- Protein1.1 g · 10.3%
- Carbs9.34 g · 87.6%
- Fat0.1 g · 2.1%
Where Onion, raw ranks
Nutrition
2.8 g protein / 100 kcal
Energy
- Energy40 kcal
Macronutrients
- Protein1.1 g2%
- Carbohydrate9.34 g3%
- Fiber1.7 g6%
- Total sugars4.24 g
- Total fat0.1 g0%
- Saturated fat0.04 g0%
Minerals
- Sodium4 mg0%
- Potassium146 mg3%
- Calcium23 mg2%
- Iron0.21 mg1%
- Magnesium10 mg2%
Vitamins
- Vitamin C7.4 mg8%
- Vitamin D—
% Daily Value based on FDA reference amounts for a general adult diet. Individual needs vary. Missing values are shown as “—”, never zero.
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Compare Onion, raw
Frequently asked questions
- How many calories are in Onion, raw?
- Onion, raw has 40 calories per 100 g edible portion.
- How much protein is in Onion, raw?
- Onion, raw has 1.1 g of protein per 100 g edible portion.
- How many carbs are in Onion, raw?
- Onion, raw has 9.3 g of carbohydrate per 100 g edible portion.
- How much fat is in Onion, raw?
- Onion, raw has 0.1 g of total fat per 100 g edible portion.
- How much fiber is in Onion, raw?
- Onion, raw has 1.7 g of fiber per 100 g edible portion.
- How much sugar is in Onion, raw?
- Onion, raw has 4.2 g of total sugars per 100 g edible portion.
- Is Onion, raw high in protein?
- Onion, raw provides 2.8 g of protein per 100 calories — a relatively low protein-to-calorie ratio.
- Is Onion, raw keto-friendly?
- Onion, raw has 9.3 g of carbohydrate per 100 g. Ketogenic diets keep carbs very low, so it can fit a keto plan in modest portions (per 100 g).
- Is Onion, raw vegan?
- Yes — Onion, raw contains no animal products, so it is vegan.
- Is Onion, raw vegetarian?
- Yes — Onion, raw is vegetarian.
- Is Onion, raw gluten-free?
- Yes — Onion, raw contains no gluten-bearing grains.
- Is Onion, raw dairy-free?
- Yes — Onion, raw contains no milk or dairy ingredients.
- What is a serving size of Onion, raw?
- A common serving of Onion, raw is 1 undetermined slice, medium (1/8" thick) (about 14 g). Use the serving selector on this page to see nutrition for any portion.
Educational information only — not medical advice. See our methodology.






