Vegetables
Leek nutrition facts
A 1 undetermined leek (124 g) serving of leek provides 38 calories, 1 g protein, 9 g carbohydrate, and 0 g fat — about 9% of its calories from protein, 86% from carbohydrate, and 5% from fat. The interactive label below toggles between a serving and 100 g.
Calorie split
Vitamins & minerals
Per serving (124 g)
- Vitamin C
- 5.21 mg
- Vitamin A (RAE)
- 50.8 mcg
- Vitamin E
- 0.62 mg
- Vitamin K
- 31.5 mcg
- Thiamin (B1)
- 0.03 mg
- Riboflavin (B2)
- 0.02 mg
- Niacin (B3)
- 0.25 mg
- Vitamin B6
- 0.14 mg
- Folate (DFE)
- 29.8 mcg
- Magnesium
- 17.4 mg
- Phosphorus
- 21.1 mg
- Zinc
- 0.07 mg
- Copper
- 0.08 mg
- Manganese
- 0.31 mg
- Selenium
- 0.62 mcg
Nutrition highlights
Per 1 undetermined leek (124 g), leek is an excellent source of Vitamin K and a good source of Manganese.
% of the FDA Daily Value per 1 undetermined leek (124 g) serving.
Key metrics
Nutrient density
Per 100 kcal, leek delivers about 12% of a Daily Value on average across 22 beneficial nutrients. The score is its percentile for that measure among the 177 foods in our database — higher means more nutrition per calorie. How this is calculated.
Density counts protein, fiber, and vitamins and minerals (not fat, sodium, or sugar), each capped so a single nutrient can’t dominate, with a calorie floor so very-low-calorie foods aren’t overstated. It measures nutrition per calorie within our database — a useful guide, not a complete verdict on how “healthy” a food is.
Similar foods & swaps
The closest vegetables to leek by nutrition (per 100 g), and how each differs.
Questions
- How many calories are in leek?
- A 1 undetermined leek (124 g) serving of leek has about 38 calories. Per 100 g, it has 31 calories — a very low calorie density.
- How much protein is in leek?
- Leek provides about 1 g of protein per 1 undetermined leek (124 g) serving.
- What are the macros in leek?
- Per serving, leek has roughly 1 g protein, 9 g carbohydrate, and 0 g fat. By calories, that is 9% protein, 86% carbohydrate, and 5% fat.
- Is leek high in protein?
- Leek has a protein density of about 2.6 g per 100 kcal, and 9% of its calories come from protein. Foods above roughly 10 g per 100 kcal are generally considered protein-dense.
- What vitamins and minerals are in leek?
- Per 1 undetermined leek (124 g), leek is a notable source of Vitamin K and Manganese. The label above lists the full micronutrient profile with % Daily Values.
Use it
More vegetables
References & methodology
- Data source: U.S. Department of Agriculture, Agricultural Research Service — FoodData Central, FDC ID 168535 (public domain).
- Daily Values: FDA Nutrition Facts label, 2016 update (adults and children aged 4+).
- Source claims: a serving supplying 10–19% of the Daily Value is a “good source”; 20% or more is an “excellent source” (FDA, 21 CFR 101.54).
- Calorie split: Atwater general factors — 4 kcal/g for protein and carbohydrate, 9 kcal/g for fat.
- Last reviewed: June 2026. Values are typical figures and vary with variety, ripeness, and preparation.
NutriFactsHub. “Leek Nutrition Facts.” https://www.nutrifactshub.com/foods/leek