Leeks vs Onions

Leeks have more of nearly everything measured here: per 100 g raw, 47 µg of vitamin K against 0.4 µg, and 2.1 mg of iron against 0.21 mg. Onions have fewer calories, at 40 against 61 kcal, and no nutrient where they clearly lead.

The verdict is written with Claude, an AI by Anthropic. The numbers come from our USDA data.

Where they differ

Per 100 g, the amount in each food. Only differences of at least 25%.

More in leeks

  • Vitamin K47 µg vs 0.4 µg
  • Manganese0.48 mg vs 0.13 mg
  • Vitamin B964 µg vs 19 µg
  • Iron2.1 mg vs 0.21 mg
  • Copper0.12 mg vs 0.04 mg

More in onions

No nutrient stands out against leeks.

USDA records compared: Leeks, (bulb and lower leaf-portion), raw; Onions, raw.

Leeks vs onionsPer serving (named under each food). % DV = % Daily Value (FDA, adults).Per 100 g. % DV = % Daily Value (FDA, adults).Per serving (named under each food). % RI = % Reference Intake (EU, adults).Per 100 g. % RI = % Reference Intake (EU, adults).
Per servingPer 100 gLeeksper 1 leek (89 g)Onionsper 1 medium (110 g)
Calories54 kcal44 kcal
Protein1.34 g (3%) (higher)1.21 g (2%)
Carbohydrates12.6 g (5%) (higher)10.3 g (4%)
Fiber1.6 g (6%)1.87 g (7%) (higher)
Sugars3.47 g4.66 g (higher)
Total fat0.27 g (<1%) (higher)0.11 g (<1%)
Saturated fat0.04 g (<1%)0.05 g (<1%) (higher)
Vitamin K41.8 µg (35%) (higher)0.4 µg (<1%)
Manganese0.43 mg (19%) (higher)0.14 mg (6%)
Folate57 µg (14%) (higher)20.9 µg (5%)
Vitamin B60.21 mg (12%) (higher)0.13 mg (8%)
Copper0.11 mg (12%) (higher)0.04 mg (5%)
Vitamin C10.7 mg (12%) (higher)8.14 mg (9%)
Calories61 kcal40 kcal
Protein1.5 g (3%) (higher)1.1 g (2%)
Carbohydrates14.2 g (5%) (higher)9.34 g (3%)
Fiber1.8 g (6%) (higher)1.7 g (6%)
Sugars3.9 g4.24 g (higher)
Total fat0.3 g (<1%) (higher)0.1 g (<1%)
Saturated fat0.04 g (<1%)0.04 g (<1%) (higher)
Vitamin K47 µg (39%) (higher)0.4 µg (<1%)
Manganese0.48 mg (21%) (higher)0.13 mg (6%)
Folate64 µg (16%) (higher)19 µg (5%)
Vitamin B60.23 mg (14%) (higher)0.12 mg (7%)
Copper0.12 mg (13%) (higher)0.04 mg (4%)
Vitamin C12 mg (13%) (higher)7.4 mg (8%)
Energy227 kJ / 54 kcal184 kJ / 44 kcal
Protein1.34 g (3%) (higher)1.21 g (2%)
Carbohydrates12.6 g (5%) (higher)10.3 g (4%)
Fiber1.6 g1.87 g (higher)
Sugars3.47 g (4%)4.66 g (5%) (higher)
Total fat0.27 g (<1%) (higher)0.11 g (<1%)
Saturated fat0.04 g (<1%)0.05 g (<1%) (higher)
Vitamin K41.8 µg (56%) (higher)0.4 µg (<1%)
Vitamin B957 µg (28%) (higher)20.9 µg (10%)
Manganese0.43 mg (21%) (higher)0.14 mg (7%)
Vitamin B60.21 mg (15%) (higher)0.13 mg (9%)
Iron1.87 mg (13%) (higher)0.23 mg (2%)
Vitamin C10.7 mg (13%) (higher)8.14 mg (10%)
Energy255 kJ / 61 kcal167 kJ / 40 kcal
Protein1.5 g (3%) (higher)1.1 g (2%)
Carbohydrates14.2 g (5%) (higher)9.34 g (4%)
Fiber1.8 g (higher)1.7 g
Sugars3.9 g (4%)4.24 g (5%) (higher)
Total fat0.3 g (<1%) (higher)0.1 g (<1%)
Saturated fat0.04 g (<1%)0.04 g (<1%) (higher)
Vitamin K47 µg (63%) (higher)0.4 µg (<1%)
Vitamin B964 µg (32%) (higher)19 µg (10%)
Manganese0.48 mg (24%) (higher)0.13 mg (6%)
Vitamin B60.23 mg (17%) (higher)0.12 mg (9%)
Iron2.1 mg (15%) (higher)0.21 mg (2%)
Vitamin C12 mg (15%) (higher)7.4 mg (9%)

● = higher amount. Source: USDA FoodData Central (FDC 169246, 170000).