Leek

Leek
GenusAllium
SpeciesAllium ampeloprasum L.
Cultivar groupLeek Group (other names are used, e.g., Porrum Group)
CultivarMany, see text
Raw leeks, bulb & lower leaves
Nutritional value per 100 g (3.5 oz)
Energy255 kJ (61 kcal)
14.15 g
Sugars3.9 g
Dietary fiber1.8 g
0.3 g
1.5 g
Vitamins and minerals
VitaminsQuantity
%DV
Vitamin A equiv.
9%
83 μg
9%
1000 μg
1900 μg
Thiamine (B1)
5%
0.06 mg
Riboflavin (B2)
2%
0.03 mg
Niacin (B3)
3%
0.4 mg
Pantothenic acid (B5)
3%
0.14 mg
Vitamin B6
14%
0.233 mg
Folate (B9)
16%
64 μg
Vitamin C
13%
12 mg
Vitamin E
6%
0.92 mg
Vitamin K
39%
47 μg
MineralsQuantity
%DV
Calcium
5%
59 mg
Iron
12%
2.1 mg
Magnesium
7%
28 mg
Manganese
21%
0.481 mg
Phosphorus
3%
35 mg
Potassium
6%
180 mg
Other constituentsQuantity
Water83 g

Percentages estimated using US recommendations for adults, except for potassium, which is estimated based on expert recommendation from the National Academies.

A leek is a vegetable, a cultivar of Allium ampeloprasum, the broadleaf wild leek (syn. Allium porrum). The edible part of the plant is a bundle of leaf sheaths that is sometimes erroneously called a "stem" or "stalk".

The genus Allium also contains the onion, garlic, shallot, scallion, chives, and Chinese onion. Three closely related vegetables—elephant garlic, kurrat and Persian leek or tareh—are also cultivars of A. ampeloprasum, although different in their culinary uses.