Seaweed, kombu, dried, raw
Last updated 4 Nov 2026
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Kombu is a type of edible seaweed. The figures here describe dried, raw kombu, rather than kombu that has been soaked or cooked. It provides protein and minerals, including calcium and iodine. Per 100g, it contains 7.1g of protein, 900mg of calcium, 4.6g of salt and 440670µg of iodine.
Iodine is needed to make thyroid hormones, which help regulate the body's metabolism. The iodine content listed is very high, and excessive iodine intake can affect thyroid function. The salt content is also relevant for people monitoring their salt intake. Full nutrient figures are provided in the tables below.
Nutrition per 100g
Nutrient | Per 100g |
|---|---|
Energy | 43 kcal |
Energy | 180 kJ |
Fat | 1.6g |
of which saturates | 0.5g |
Carbohydrate | Trace |
of which sugars | Trace |
7.1g | |
Salt | 4.6g |
Water | 13g |
Cholesterol | 0mg |
Vitamins and minerals per 100g
Nutrient | Per 100g |
|---|---|
57µg | |
0µg | |
13mg | |
0.07mg | |
0.26mg | |
2.1mg | |
0.01mg | |
2.8µg | |
900mg | |
13mg | |
610mg | |
210mg | |
450mg | |
Sodium | 1830mg |
6.2mg | |
0.65mg | |
2µg | |
440670µg |
Other types of seaweed
Food | Calories per 100g | Protein per 100g | Fat per 100g | Fibre per 100g |
|---|---|---|---|---|
136 kcal | 31g | 1.5g | – | |
71 kcal | 12g | 2.4g | – | |
8 kcal | 1.5g | 0.2g | – |
About these figures
Values are per 100g of the food as described (Analysis and literature sources). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.