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Food · Vegetables and Vegetable Products

Green onions nutrition facts

A typical portion of green onions (1 cup; 100 g, raw) has 30 calories and 2g of protein (USDA FoodData Central). USDA lists 3 descriptions of it: per 100 g they range from 32 calories (raw) to 63 (cooked).

Nutrition Facts

Serving size1 cup (100g)
Amount per serving
Calories30
% Daily Value*
Total Fat 0g0%
Saturated Fat 0g0%
Trans Fat not declared
Cholesterol 0mg0%
Sodium 15mg1%
Total Carbohydrate 7g3%
Dietary Fiber 3g9%
Total Sugars 2g
Includes Added Sugars not declared
Protein 2g4%
Vitamin D 0mcg0%
Calcium 70mg6%
Iron 1.5mg8%
Potassium 280mg6%

* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. Protein % DV here is not corrected for protein quality.

USDA values per 100 g for Onions, green, raw, scaled to the portion. Check the USDA record.

Protein per 100 g
1.8g
more than 22% of 8,218 USDA reference foods
Calories per 100 g
32
more than 8% of reference foods
Sodium per 100 g
16mg
more than 21% of reference foods

1 cup weighs 100 g in USDA's record for Onions, green, raw (FDC 2709794); across 2 records of green onions USDA weighs it at 100 to 225 g, so a linked record can show a different gram weight for the same measure.

Where the calories come from: 76% carbohydrate, 4% fat and 19% protein (4 calories a gram of protein or carbohydrate, 9 of fat).

Also rich in

  • Vitamin K207 µg in 1 cup (100 g), 173% of the Daily Value
  • Vitamin C19 mg in 1 cup (100 g), 21% of the Daily Value
  • Folate64 µg DFE in 1 cup (100 g), 16% of the Daily Value

Source: USDA FoodData Central (FDC 2709794), every nutrient the record reports; FDA Daily Values, 21 CFR 101.9.

Every form of green onions USDA describes

Cooked has the most calories per 100 g (63); the fewest: Raw (32)

Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63Calories per 100 g by USDA description of green onionsRaw32Cooked63
Per 100 g, USDA FoodData Central. The violet bar is the form on the label at left.
All 3 USDA descriptions of green onions, per 100 g
USDA descriptionCaloriesProteinFatSodium
Onions, green, raw321.8 g0.2 g16 mg
Onions, green, cooked632.1 g3.2 g161 mg
Green onion, (scallion), bulb and greens, root removed, raw0.7 gn/a10 mg

Every nutrient in this record (65)

The portion is 1 cup (100 g); % DV is for that portion.

Energy, macronutrients and sugars (12)
NutrientPer portionPer 100 g% DV
Protein1.83 g1.83 g4%
Total lipid (fat)0.19 g0.19 g0%
Carbohydrate, by difference7.34 g7.34 g3%
Energy32.0 kcal32.0 kcal
Alcohol, ethyl0 g0 g
Water89.8 g89.8 g
Total Sugars2.33 g2.33 g
Fiber, total dietary2.60 g2.60 g9%
Cholesterol0 mg0 mg0%
Fatty acids, total saturated0.032 g0.032 g0%
Fatty acids, total monounsaturated0.027 g0.027 g
Fatty acids, total polyunsaturated0.074 g0.074 g
Minerals (9)
NutrientPer portionPer 100 g% DV
Calcium, Ca72.0 mg72.0 mg6%
Iron, Fe1.48 mg1.48 mg8%
Magnesium, Mg20.0 mg20.0 mg5%
Phosphorus, P37.0 mg37.0 mg3%
Potassium, K276 mg276 mg6%
Sodium, Na16.0 mg16.0 mg1%
Zinc, Zn0.39 mg0.39 mg4%
Copper, Cu0.083 mg0.083 mg9%
Selenium, Se0.60 µg0.60 µg1%
Vitamins (23)
NutrientPer portionPer 100 g% DV
Retinol0 µg0 µg
Vitamin A, RAE50.0 µg50.0 µg6%
Carotene, beta598 µg598 µg
Carotene, alpha0 µg0 µg
Vitamin E (alpha-tocopherol)0.55 mg0.55 mg4%
Vitamin D (D2 + D3)0 µg0 µg0%
Cryptoxanthin, beta0 µg0 µg
Lycopene0 µg0 µg
Lutein + zeaxanthin1,137 µg1,137 µg
Vitamin C, total ascorbic acid18.8 mg18.8 mg21%
Thiamin0.055 mg0.055 mg5%
Riboflavin0.080 mg0.080 mg6%
Niacin0.53 mg0.53 mg3%
Vitamin B-60.061 mg0.061 mg4%
Folate, total64.0 µg64.0 µg
Vitamin B-120 µg0 µg0%
Choline, total5.70 mg5.70 mg1%
Vitamin K (phylloquinone)207 µg207 µg173%
Folic acid0 µg0 µg
Folate, food64.0 µg64.0 µg
Folate, DFE64.0 µg64.0 µg16%
Vitamin E, added0 mg0 mg
Vitamin B-12, added0 µg0 µg
Fatty acids (19)
NutrientPer portionPer 100 g% DV
SFA 4:00 g0 g
SFA 6:00 g0 g
SFA 8:00 g0 g
SFA 10:00 g0 g
SFA 12:00 g0 g
SFA 14:00.0010 g0.0010 g
SFA 16:00.028 g0.028 g
SFA 18:00.0030 g0.0030 g
MUFA 18:10.027 g0.027 g
PUFA 18:20.070 g0.070 g
PUFA 18:30.0040 g0.0040 g
PUFA 20:40 g0 g
PUFA 22:6 n-3 (DHA)0 g0 g
MUFA 16:10 g0 g
PUFA 18:40 g0 g
MUFA 20:10 g0 g
PUFA 20:5 n-3 (EPA)0 g0 g
MUFA 22:10 g0 g
PUFA 22:5 n-3 (DPA)0 g0 g

Source: USDA FoodData Central, FDC 2709794: every value the record reports, per 100 g as USDA gives it and scaled to the portion; Daily Values: 21 CFR 101.9.

Source: USDA FoodData Central (SR Legacy, Foundation Foods and Survey foods), April 30, 2026 release.

Questions

How many calories are in green onions?

30 in 1 cup (100 g) of raw; 32 to 63 per 100 g across USDA's descriptions.

How much protein is in green onions?

2g in 1 cup; 1.8 g per 100 g.

How much sodium is in green onions?

15mg in 1 cup; 16 mg per 100 g. Salt added in cooking changes it: USDA lists salted and unsalted forms separately where it measured both.

Sources for this page
USDA FoodData Central
the food and product records, April 30, 2026 release. fdc.nal.usda.gov
FoodData Central documentation
what each data type is and how branded records are submitted. fdc.nal.usda.gov
USDA Food and Nutrient Database for Dietary Studies
the survey foods and their portions. ars.usda.gov
21 CFR 101.9, Nutrition labeling of food
the label format, rounding and Daily Values. ecfr.gov
FDA, How to Understand and Use the Nutrition Facts Label
the 5% and 20% Daily Value rule. fda.gov