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?
Per 100 g (as listed by source). USDA FoodData Central.
Scales this reference to your portion, with no extra deductions. Calculation and units.
4.7gnet carbs in your portion
- Total carbs
- 7.3g
- Fiber
- 2.6g
- Protein
- 1.8g
- Fat
- 0.2g
- Calories
- 32
The 100 g reference amount provides 4.7g net carbs and can fit common keto portions.
- 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.