Written by CalorieData Nutrition TeamReviewed by a Registered DietitianLast Updated: March 2026

Edamame vs Onion: Nutrition Comparison

Which is healthier? Compare calories, protein, carbs, and more

Complete side-by-side nutrition comparison per 100g serving | Updated 2026

Which is Healthier?

Edamame is generally healthier

Edamame comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has more protein (12g vs 1.1g), more fiber (5.2g vs 1.7g), less sugar (2.2g vs 4.2g), making it the better choice for most health goals.

Quick Summary

Fewer Calories

Onion

40 kcal

More Protein

Edamame

12g

More Fiber

Edamame

5.2g

Less Sugar

Edamame

2.2g

Visual Comparison

Caloriesper 100g
Edamame
121
Onion
40
Proteinper 100g
Edamame
12g
Onion
1.1g
Carbohydratesper 100g
Edamame
9g
Onion
9g
Fatper 100g
Edamame
5.2g
Onion
0.1g

Side-by-Side Nutrition Table

NutrientEdamameOnionDifference
Calories121kcal40kcal+81.0kcal
Protein12g1.1g+10.9g
Carbohydrates9g9g0.0g
Fat5.2g0.1g+5.1g
Fiber5.2g1.7g+3.5g
Sugar2.2g4.2g-2.0g
Sodium6mg4mg+2.0mg

Serving Size Comparison

All values above are per 100g. Here's how they compare in common serving sizes:

Edamame

Per 100g:121 calories
Per cup (150g):182 calories
Per serving (85g):103 calories

Onion

Per 100g:40 calories
Per cup (150g):60 calories
Per serving (85g):34 calories

Diet Compatibility

Edamame

Low-CarbVeganVegetarianPaleoLow-Sodium

Onion

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

When to Choose Edamame

  • Higher in protein (12g vs 1.1g)
  • More fiber (5.2g vs 1.7g)
  • Lower in carbs (9g vs 9g)
  • Less sugar (2.2g vs 4.2g)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Edamame nutrition →

When to Choose Onion

  • Lower in calories (40 vs 121)
  • Lower sodium (4mg vs 6mg)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Onion nutrition →

Edamame vs Onion: Nutritional Analysis

Edamame is more calorie-dense at 121 calories per 100g compared to 40 for Onion, a difference of 81 calories. On the protein front, Edamame delivers more with 12g per 100g versus 1.1g, which matters for muscle maintenance, satiety, and overall metabolic health. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.

Macronutrient Breakdown

The macronutrient profiles of Edamame and Onion tell different nutritional stories. Edamame provides 9g of carbohydrates, 5.2g of fat, and 5.2g of fiber per 100g, while Onion contains 9g carbs, 0.1g fat, and 1.7g fiber. The higher fiber content in Edamame supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Edamame contains 2.2g while Onion has 4.2g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Onion is the lower-calorie choice at 40 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Edamame provides more protein (12g/100g), supporting muscle repair and growth.
  • For sustained energy: Edamame offers more fiber (5.2g/100g), which slows digestion and provides steadier energy release.
  • Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.

Frequently Asked Questions

Which has more calories, Edamame or Onion?

Edamame has more calories with 121 kcal per 100g, compared to Onion with 40 kcal. That's a difference of 81 calories per 100g serving.

Is Edamame healthier than Onion?

Based on our nutritional analysis, Edamame is generally the healthier choice, winning in 3 out of 5 key nutritional categories. Edamame has 121 calories, 12g protein, and 5.2g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Edamame and Onion?

Edamame has more protein with 12g per 100g, compared to Onion with 1.1g. Edamame provides 10.9g more protein per 100g serving.

Which is better for weight loss, Edamame or Onion?

For weight loss, Onion is the better choice with only 40 calories per 100g compared to 121 calories in Edamame. Edamame also offers 5.2g of fiber per 100g, which helps you feel fuller longer.

Does Edamame or Onion have fewer carbs?

Edamame and Onion have the same carbohydrate content at 9g per 100g.

About Our Data

All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.

Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.