Calories in Red Onion

Food analysis

Low In Fat Low Calorie Density High In Fiber
There is 4 calories in 20 grams of Red Onion. With 40 calories per 100 grams, this food would be considered a Low calorie density food. A Low calorie density usually indicate that you can consume a larger amount of food with less calories and are usually good choices when dieting.

Red Onion is High in carbohydrates, Low in proteins and Very Low in fats. You can look at the macronutrients graph below for a detailed ratio. With a High quantity of fibers and a Low quantity of sugars, this usually indicates that it is a good choice of carbohydrates.

With 7 grams of "Net carbohydrates" per 100 grams, it must be consumed with moderation if you are following a Keto or Ketosis diet.

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Macronutrients split

Nutrients and how much we eat of it play an important role on our health and body composition. To learn more on theses, check our blog posts on Proteins, Carbohydrates and Fats.

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