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Leeks, raw

Leeks are vegetables in the onion family. The figures here describe raw leeks that have been trimmed, with damaged outer leaves removed. They provide carbohydrate and fibre, with smaller amounts of protein. Per 100g, they contain 4.1g of carbohydrate, 2.8g of fibre, 1.5g of protein and 33µg of folate.

Fibre supports normal bowel function, while folate is needed for normal cell division and the formation of red blood cells. Raw leeks contain only trace amounts of salt and little saturated fat. Added salt, butter or sauces will change the nutritional content of a prepared dish. Full nutrient figures are provided in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

23 kcal

Energy

99 kJ

Fat

0.2g

of which saturates

0.04g

Carbohydrate

4.1g

of which sugars

3.8g

Fibre

2.8g

Protein

1.5g

Salt

Trace

Alcohol

0g

Water

91g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

3µg

Vitamin D

0µg

Vitamin E

0.35mg

Vitamin K1

10µg

Vitamin C

3.1mg

Thiamin (B1)

0.05mg

Riboflavin (B2)

0.03mg

Niacin (B3)

0.3mg

Vitamin B6

0.17mg

Vitamin B12

0µg

Folate

33µg

Calcium

52mg

Iron

0.42mg

Magnesium

7mg

Phosphorus

23mg

Potassium

230mg

Sodium

Trace

Zinc

Trace

Copper

Trace

Selenium

1µg

Iodine

2µg

Other types of leeks

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Leeks, boiled in unsalted water

16 kcal

1.2g

0.2g

1.9g

Leeks, roasted in rapeseed oil

41 kcal

1.7g

1.9g

3.1g

About these figures

Values are per 100g of the food as described (11 samples, UK, trimmed and damaged outer leaves removed). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Further reading and references

  • Public Health England. McCance and Widdowson's The Composition of Foods Integrated Dataset 2021. GOV.UK.

Article history

The information on this page is written and peer reviewed by qualified clinicians.
  • 4 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published