Red Onion vs White Onions: All Nutritional Differences

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

Red onion - calories, kcal, weight, nutrition
White onions - calories, kcal, weight, nutrition

Less Calories in Red onion

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

Red onion has 33 kcal per 100g and white onion 38 kcal per 100g so it is pretty easy to calculate that the difference is about 15%.

In red onion and in white onion most calories came from carbs.

See tables below to compare red onion with white onion in details.

Red onion And White onion Nutrition Difference

White onion vs Red onion: Vitamins and Minerals Comparison

per 100gRed onionWhite onions
Calories33 38
Carbohydrates6.1 g8.61 g
Fat0.4 g0.05 g
Dietary fiber1.7 g1.9 g
Protein1.2 g0.83 g
Water90.8 g90.1 g
Calcium25 mg15 mg
Iron0.5 mg0.28 mg
Magnessium8 mg9 mg
Phosphorus14 mg34 mg
Potassium121 mg182 mg
Sodium6 mg1 mg
Zink0.24 mg0.2 mg
Vitaminium C6 mg8.2 mg

More protein in red onion

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

There is 0.83g per 100g of white onion and 1.2g per 100g of red onion so using simple math we can see that difference is about 45%.

Less carbohydrates in red onion

In red onion is less carbohydrates than in white onion.

There is 8.61g/100g of carbohydrates in white onion and 6.1g/100g in red onion so let me do the math for you again - difference is about 41%.

More fat in red onion

In red onion is more fats than in white onion.

The tables above show us that there is 0.05g/100g of fats in white onion and 0.4g/100g in red onion. In this case difference is about 700%.

Red onion

  • Calories33
  • Carbohydrates6.1 g
  • Fat0.4 g
  • Dietary fiber1.7 g
  • Protein1.2 g
  • Water90.8 g
Red onion calories per:
100g | ounce | single piece | cup | half cup

Calories source

  • 74% CARBS.
  • 15% PROTEIN
  • 11% FAT

White onions

  • Calories38
  • Carbohydrates8.61 g
  • Fat0.05 g
  • Dietary fiber1.9 g
  • Protein0.83 g
  • Water90.1 g
White onions calories per:
100g | ounce | single piece | cup | half cup

Calories source

  • 90% CARBS
  • 9% PROTEIN
  • 1% FAT

Vitamins: white onion vs red onion

Minerals: red onion vs white onion

Marcin Piotrowicz
Author of this page
Marcin Piotrowicz creator
Healthy diet and healthy lifestyle 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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