Green onions are excellent for keto with only ~4.7g net carbs per 100g. Also known as scallions, they deliver mild onion flavor with less carb impact than regular onions—especially the green tops—making them a perfect garnish and flavor booster for keto meals.
Is Green Onion Keto?

YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 g (as listed by source). USDA FoodData Central.
How this is calculated
total carbohydrate - fiber. Each published value is multiplied by your portion divided by the reference amount. No extra fiber, sugar alcohol or allulose deductions are applied here.
Grams and milliliters are not interchangeable. Household measures require a food-specific conversion; check your scale or product label.
4.7gnet carbs in your portion
- Total carbs
- 7.3g
- Fiber
- 2.6g
- Protein
- 1.8g
- Fat
- 0.2g
- Calories
- 32
Green onions are excellent for keto with only ~4.7g net carbs per 100g. Also known as scallions, they deliver mild onion flavor with less carb impact than regular onions—especially the green tops—making them a perfect garnish and flavor booster for keto meals.
- Net carbs (100 g)4.7g
- Protein (100 g)1.8g
- Fat (100 g)0.2g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100 g (as listed by source)
Source: USDA FoodData Central reference record
Source fit: generic reference; variety, brand, or preparation may differ
Net-carb calculation: total carbohydrate - fiber
This USDA record is used as a generic nutrition reference; variety, brand, or preparation may differ.
Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.
WHY IT'S KETO-FRIENDLY
- Low net carbs: About 4.7g per 100g—much lower than regular onions
- Used as garnish: Typical 5–10g portions add only ~0.2–0.5g net carbs
- Green tops lower: The green parts tend to have fewer carbs than the white bulbs
- Mild flavor: Provides onion taste without the sharp bite or high carbs
- Raw-friendly: Often used fresh, preserving vitamins and phytonutrients
- Versatile: Great in Asian dishes, omelets, salads, soups, and as a finishing touch
PREPARATION SUGGESTIONS
FRESH GARNISH
Slice thin and sprinkle over eggs, soups, tacos, or salads for color, crunch, and mild onion flavor.
STIR-FRY ADDITION
Cut into 1-inch pieces and add in the last minute of cooking stir-fries so they stay crisp and bright.
OMELET FILLING
Chop and fold into omelets or scrambled eggs with cheese for a classic breakfast.
GRILLED
Brush whole scallions with oil and grill 2–3 minutes until lightly charred; serve as a side or chop for toppings.
SCALLION OIL
Gently warm chopped scallions in neutral oil until fragrant; drizzle over proteins or vegetables.
COMPOUND BUTTER
Mix finely chopped green onions into softened butter with salt; melt over steaks, seafood, or vegetables.