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Mushrooms, shiitake, dried, raw

Shiitake mushrooms are edible fungi. The figures here describe them dried and raw, before soaking or cooking. They mainly provide carbohydrate, with some protein, alongside minerals and B vitamins. Per 100g, they contain 64g of carbohydrate, 9.6g of protein, 1g of fat and 1530mg of potassium.

Potassium helps nerves and muscles function normally, while B vitamins help the body release energy from food. Dried mushrooms contain little water, so their nutrients and energy are more concentrated by weight than in fresh mushrooms. Soaking increases their water content, changing the amounts per weight of prepared food. Added salt, stock or sauces can also change the nutritional content of a dish. Full nutrient figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

296 kcal

Energy

1238 kJ

Fat

1g

of which saturates

0.2g

Carbohydrate

64g

Protein

9.6g

Salt

0.03g

Water

9.5g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

0µg

Vitamin D

0µg

Vitamin C

Trace

Thiamin (B1)

0.3mg

Riboflavin (B2)

1.3mg

Niacin (B3)

14mg

Vitamin B12

0µg

Calcium

11mg

Iron

1.7mg

Magnesium

130mg

Phosphorus

290mg

Potassium

1530mg

Sodium

13mg

Other types of mushrooms

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Mushrooms, Chinese, dried, raw

284 kcal

10g

1.8g

–

Mushrooms, Jew's ear, tender, dried, raw

279 kcal

6.9g

1g

–

Mushrooms, Jew's ear, tender, dried, soaked, raw

29 kcal

0.7g

0.7g

–

Mushrooms, Jew's ear, tough, dried, raw

325 kcal

4.8g

2g

–

Mushrooms, Jew's ear, tough, dried, soaked, raw

76 kcal

1.1g

0.2g

–

Mushrooms, oyster, raw

8 kcal

1.6g

0.2g

–

Mushrooms, shiitake, cooked

55 kcal

1.6g

0.2g

–

Mushrooms, white, raw

7 kcal

1g

0.2g

0.7g

Mushrooms, white, fried in corn oil

106 kcal

1.4g

11g

1g

Mushrooms, white, fried in rapeseed oil

106 kcal

1.4g

11g

1g

Mushrooms, white, fried in salted butter

106 kcal

1.4g

11g

1g

Mushrooms, white, stewed in unsalted water

9 kcal

1.4g

0.3g

2.6g

Mushrooms, common, canned, re-heated, drained

12 kcal

2.1g

0.4g

–

Mushrooms, straw, canned, drained

15 kcal

2.1g

0.2g

–

About these figures

Values are per 100g of the food as described (Literature sources:). "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