Onion vs Apple: All Nutritional Differences

Where is more calories, protein, carbs - what is more healthy?

Rating: 4.6 on 7 votes.
Marcin PiotrowiczMarcin Piotrowicz
Onion - calories, kcal, weight, nutrition
Apple - calories, kcal, weight, nutrition

Fact 1: There is Less Calories in Onion

At first glance, you can see that in onion is less calories than in apple.

Onion has 40 kcal per 100g and apple 52 kcal per 100g so it is pretty easy to calculate that the difference is about 30%.

In onion and in apple most calories came from carbs.

See tables below to compare onion with apple in details.

Fact 2: Onion And Apple Nutrition Difference

Apple vs Onion: Vitamins and Minerals Comparison

per 100gOnionApple
Calories40 52
Carbohydrates9.34 g13.81 g
Fat0.1 g0.17 g
Dietary fiber1.7 g2.4 g
Protein1.1 g0.26 g
Calcium23 mg6 mg
Magnessium10 mg5 mg
Phosphorus29 mg11 mg
Potassium146 mg107 mg
Sodium4 mg1 mg
Zink0.17 mg0.04 mg
Vitaminium B1 (Thiamine)0.046 mg0.017 mg
Vitaminium B2 (riboflavin)0.027 mg0.026 mg
Vitaminium B3 (Niacin)0.116 mg0.091 mg
Vitaminium B50.123 mg0.061 mg
Vitaminium B60.12 mg0.041 mg
Vitaminium B9 (Folic acid)19 mg3 mg
Vitaminium C7.4 mg4.6 mg
Vitaminium E0.02 mg0.18 mg
Beta karoten1 mg27 mg

More protein in onion

It is aslo easy to see see that in onion is more protein than in apple.

There is 0.26g per 100g of apple and 1.1g per 100g of onion so using simple math we can see that difference is about 323%.

Less carbohydrates in onion

In onion is less carbohydrates than in apple.

There is 13.81g/100g of carbohydrates in apple and 9.34g/100g in onion so let me do the math for you again - difference is about 48%.

Less fat in onion

In onion is less fats than in apple.

The tables above show us that there is 0.17g/100g of fats in apple and 0.1g/100g in onion. In this case difference is about 70%.


  • Calories40
  • Carbohydrates9.34 g
  • Fat0.1 g
  • Dietary fiber1.7 g
  • Protein1.1 g
Onion calories per:
100g | ounce | single piece | slice | cup | sliced

Calories source

  • 88% CARBS.
  • 10% PROTEIN
  • 2% FAT


  • Calories52
  • Carbohydrates13.81 g
  • Fat0.17 g
  • Dietary fiber2.4 g
  • Protein0.26 g
Apple calories per:
100g | ounce | single piece | cup | sliced

Calories source

  • 96% CARBS
  • 2% PROTEIN
  • 3% FAT

Vitamins: apple vs onion

Minerals: onion vs apple

Marcin Piotrowicz
Author of this page
Marcin Piotrowicz

calories-info.com creator
Healthy eating and living style promoter

All information about nutrition on this website was created with help of information from the official United States Department of Agriculture database.

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