Calories In Onion

When it comes to low-calorie, nutrient-packed vegetables, onions often top the list. But exactly how many calories are in an onion? The answer depends on the type and size you’re consuming.

A small raw onion (approximately 70g) contains around 30 calories, while a medium-sized onion (110g) has approximately 45 calories. Larger onions (150g or more) may contain up to 60 calories. These values may vary slightly depending on whether you’re eating red, white, yellow, or sweet onions, but the differences are relatively minimal. Interestingly, cooking onions slightly increases their calorie count due to moisture loss, which concentrates their natural sugars.

In addition to being low in calories, onions are rich in vitamins C and B6, manganese, and antioxidants, making them a great addition to any diet. They’re also high in fiber, which promotes digestive health while keeping you feeling fuller for longer.

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