✦ Low calorie ✦ Vitamin K source ✦ Prebiotic fibre ✦ Folate

Leeks are mild alliums related to onions and garlic. They are low in calories and provide vitamin K, folate, manganese and prebiotic fibres that support gut bacteria.

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Preparation note

Including the green tops adds more vitamin K and vitamin A than the white part alone; eat raw or lightly cooked.

Sources: CoFID 2021

Macronutrients per 100g

5.87
kcal
Energy
1.47
g
Protein
3.15
g
Sugars
0.04
g
Salt

Vitamins & Minerals

Nutrient Per 100g % Daily Value* Level
Potassium 319 mg 16%
Calcium 51.4 mg 6%
Phosphorus 34.6 mg 5%
Magnesium 15.7 mg 4%
Iron 0.761 mg 5%
Zinc 0.293 mg 3%
Vitamin B6 0.208 mg 15%
Manganese 0.124 mg 6%
Copper 0.057 mg 6%
Fructose 1.36 g —
Glucose (dextrose) 1.06 g —
Sucrose 0.660 g —
Lutein + Zeaxanthin 1,900 µg —
Biotin (Vitamin B7) 2.94 µg 6%

* % Daily Value is the proportion of an adult EU Nutrient Reference Value (NRV) supplied by 100g of this food. NRVs are the labelling standard — the same basis as the “%RI” figures printed on food packaging — so these percentages are directly comparable with a shop label. They are a single adult figure and do not vary by age or sex, which is why they sometimes differ from UK dietary reference values: the NRV for vitamin C is 80mg where the UK RNI is 40mg. When Nutriofia assesses your own intake in the reports and trackers, it uses the age- and sex-specific UK values instead.

Fibre is shown without a percentage. Our fibre values use the UK Englyst NSP method, while the published 30g daily goal is an AOAC figure — the two are measured differently and a single percentage would mislead. How we source and normalise our data →

Sources: CoFID 2021
Vegetables Alliums 🇺🇸 USDA FDC 2025