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Green onion calories

Green onion, raw, scallion
5kcal
1 stalk · 15 g, raw, scallion
19%protein
0.3 gProtein
1 gCarbs
0 gFat
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Nutrition facts
Raw, scallion · per 15 g
Calories5 kcal
Protein0.3 g
Carbohydrate1.1 g
Fat0 g
Saturated fat0 g
Cholesterol0 mg
Sodium2 mg
Potassium41 mg
Iron0.2 mg

Source: USDA FoodData Central

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Verified nutrition data

Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →

Most popular green onion brands in the United States
Ranked by popularity in the BodyPal database
#  Productkcal / 100 g
1Green Giant Fresh Green Onions1/4 cup · 25 g40 kcal
2Fresh Innovations Green Onions1/4 cup · 30 g33 kcal

Packaged green onions are raw, like the numbers above; the small gap comes from label rounding on a 25 to 30 g serving.
Source: manufacturer labels / USDA FoodData Central.

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Green onion FAQs
How many calories are in one green onion?

One raw green onion stalk (15 g) is about 5 calories. A cup of chopped green onion (100 g) is 32 calories.

Are green onions good for weight loss?

A stalk adds 5 calories and a whole cup chopped only 32, with 2.6 g fiber per 100 g.

Green onion vs onion: which has fewer calories?

Green onion has 32 calories per 100 g raw, against 40 per 100 g for a regular onion.

How much protein and carbs are in green onions?

Per 100 g raw there are 1.8 g protein and 7.3 g carbs, of which 2.3 g sugars and 2.6 g fiber. One stalk (15 g) has 0.3 g protein.