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Seakale, stem only, boiled in unsalted water

Seakale is a vegetable with edible stems. The figures here are for the stems only, boiled in unsalted water. It consists mainly of water and provides small amounts of protein and carbohydrate, as well as vitamins and minerals. Per 100g, it contains 1.4g of protein, 0.6g of carbohydrate, 18mg of vitamin C and 48mg of calcium.

Vitamin C supports normal immune function and helps the body absorb iron from plant foods. Calcium contributes to maintaining bones and teeth. This preparation contains little salt and only trace amounts of fat and saturated fat. Adding salt, butter or sauces would change its nutritional content. Full nutritional figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

8 kcal

Energy

33 kJ

Fat

Trace

of which saturates

Trace

Carbohydrate

0.6g

of which sugars

0.6g

Protein

1.4g

Salt

0.01g

Water

96g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin D

0µg

Vitamin C

18mg

Thiamin (B1)

0.06mg

Vitamin B12

0µg

Calcium

48mg

Iron

0.6mg

Magnesium

11mg

Phosphorus

34mg

Potassium

50mg

Sodium

4mg

Copper

0.07mg

About these figures

Values are per 100g of the food as described (Boiled 20 minutes). "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