Red Onion vs White Onions: All Nutritional Differences

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

• Calories:
  white onion - 15% more than red onion
• Carbohydrates:
  white onion - 41% more than red onion
• Fat:
  red onion - 700% more than white onion
• Dietary fiber:
  white onion - 12% more than red onion
• Protein:
  red onion - 45% more than white onion
• Water:
  red onion - 1% more than white onion

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%.

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