The macros found in Onion are split (approximately) 10% protein, 88% carbs, and 2% fat of total calories.
In g of Onion there are 40 Calories, 1.1 grams Protein, 9.3 grams Carbs, and 0.1 grams Fat.
In oz of Onion there are 11 Calories, 0.3 grams Protein, 2.7 grams Carbs, and 0 grams Fat.
Macronutrients in Food
Check out the macronutrient breakdowns of other ingredients, including a list of high protein foods and more in our Macros in Food page, or search the calorie and macro content of another food below.