Vegetables

Onions, raw

Per 100 g

Calories: 40 kcal
Protein: 1.1 g
Fiber: 1.7 g
Fat: 0.1 g

Low fat 2% of its calories come from fat. Our scale

All nutrients

Per 100 g of onions, raw. % Daily Value is for an adult, US FDA values.

Macronutrients

Nutrient	Per 100 g	% DV
Carbohydrates	9.3 g	3%
Protein	1.1 g	2%
Fat	0.1 g	0%
Water	89 g

Carbohydrates

Nutrient	Per 100 g	% DV
Fiber	1.7 g	6%
Sugars	4.2 g

Essential amino acids

Nutrient	Per 100 g
Histidine	0.01 g
Isoleucine	0.01 g
Leucine	0.03 g
Lysine	0.04 g
Methionine	0 g
Phenylalanine	0.03 g
Threonine	0.02 g
Tryptophan	0.01 g
Valine	0.02 g

Fats

Nutrient	Per 100 g	% DV
Saturated fat	0.04 g	0%
Monounsaturated fat	0.01 g
Polyunsaturated fat	0.02 g
Omega 3	0 g
Omega 6	0.01 g
Trans fat	0 g
Cholesterol	0 mg	0%

Vitamins

Nutrient	Per 100 g	% DV
Vitamin A (RAE)	0 µg	0%
Vitamin C	7.4 mg	8%
Vitamin D	0 µg	0%
Vitamin E	0.02 mg	0%
Vitamin K1	0.4 µg	0%
Thiamin (B1)	0.05 mg	4%
Riboflavin (B2)	0.03 mg	2%
Niacin (B3)	0.12 mg	1%
Pantothenic acid (B5)	0.12 mg	2%
Vitamin B6	0.12 mg	7%
Folate (DFE)	19 µg	5%
Vitamin B12	0 µg	0%

Minerals

Nutrient	Per 100 g	% DV
Calcium	23 mg	2%
Iron	0.21 mg	1%
Magnesium	10 mg	2%
Phosphorus	29 mg	2%
Potassium	146 mg	3%
Sodium	4 mg	0%
Zinc	0.17 mg	2%
Copper	0.04 mg	4%
Manganese	0.13 mg	6%
Selenium	0.5 µg	1%

Linked nutrients open a table that ranks plant foods by that nutrient.

Portion weights

Portion	Weight	Calories
1 cup, chopped	160 g	64 kcal
1 cup, sliced	115 g	46 kcal
1 tbsp chopped	10 g	4 kcal
1 large	150 g	60 kcal
1 slice, large (1/4" thick)	38 g	15 kcal
1 medium (2-1/2" dia)	110 g	44 kcal
1 slice, medium (1/8" thick)	14 g	5.6 kcal
1 small	70 g	28 kcal

How we label fat

Our own scale, stricter than official labels: a food with less than 10% of its calories from fat is labelled Low fat, 10% to under 20% Medium fat, 20% or more High fat. The label describes how the food's calories are made up; official US and UK labels use other limits.