Yes, Onion can be a healthy addition to your diet when consumed in moderation. It contains 64 calories, 1.8g of protein, 14.9g of carbohydrates, and 0.2g of fat per cup, chopped (160g).

Is Onion good for weight loss?

Onion can be part of a weight loss diet when consumed in appropriate portions. With 64 calories per cup, chopped (160g), it's important to factor this into your daily caloric intake.

Vegetables

Is Onion Healthy?

Q: How many calories are in Onion?

Onion contains 64 calories per cup, chopped (160g).

FoodData CentralUpdated 30 March 2026

Onion is a good addition to a balanced diet — 64 calories and 1.8g protein per cup, chopped (160g).

Health Score:62/100Good

How is this calculated?

Health Benefits of Onion

Contains dietary fiber for digestive support
Low in calories, suitable for weight management
Rich in vitamins and antioxidants
Supports immune system health

Nutritional Overview

A cup, chopped (160g) of onion contains the following nutritional values:

Calories

64 kcal

Protein

1.8g

Carbohydrates

14.9g

Fat

0.2g

Things to Consider

Generally suitable for most dietary patterns

The Verdict

Yes, onion is healthy when consumed as part of a balanced diet. Onion provides valuable nutrients including essential macronutrients. Like all foods, moderation and variety are key to a healthy eating pattern.

Detailed Nutrition Info

How many calories are in Onion?

How many carbs are in Onion?

How much protein is in Onion?

How much fat is in Onion?

How much fiber is in Onion?