Onion vs Cucumber

Complete nutrition comparison per 100g serving

Which is Healthier?

Cucumber is generally healthier

Cucumber comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has fewer calories (16 vs 40), less sugar (1.7g vs 4.2g), less sodium (2mg vs 4mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Cucumber

16 kcal

More Protein

Onion

1.1g

More Fiber

Onion

1.7g

Less Sugar

Cucumber

1.7g

Visual Comparison

Caloriesper 100g
Onion
40
Cucumber
16
Proteinper 100g
Onion
1.1g
Cucumber
0.7g
Carbohydratesper 100g
Onion
9g
Cucumber
4g
Fatper 100g
Onion
0.1g
Cucumber
0.1g

Side-by-Side Nutrition Table

NutrientOnionCucumberDifference
Calories40kcal16kcal+24.0kcal
Protein1.1g0.7g+0.4g
Carbohydrates9g4g+5.0g
Fat0.1g0.1g0.0g
Fiber1.7g0.5g+1.2g
Sugar4.2g1.7g+2.5g
Sodium4mg2mg+2.0mg

Serving Size Comparison

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

Onion

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

Cucumber

Per 100g:16 calories
Per cup (150g):24 calories
Per serving (85g):14 calories

Diet Compatibility

Onion

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

Cucumber

Low-CarbLow-CalorieVeganVegetarianPaleoLow-Sodium

When to Choose Onion

  • Higher in protein (1.1g vs 0.7g)
  • More fiber (1.7g vs 0.5g)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Onion nutrition →

When to Choose Cucumber

  • Lower in calories (16 vs 40)
  • Lower in carbs (4g vs 9g)
  • Less sugar (1.7g vs 4.2g)
  • Lower sodium (2mg vs 4mg)

Common Uses

SaladsStir-friesRoasted sidesSoups
View full Cucumber nutrition →