FoundationVegetables and Vegetable Productsvalues per 100 g

Mushrooms, shiitake

Energy

44 kcal / 100 g

Nutrients reported

Measured portions

Portion converter

Nutrition data is published per 100 g. Pick a portion to see what it works out to.

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Total weight

100 g

Nutrient	Per 100 g	In this amount
Energy (Atwater General Factors)(chosen energy value)	44 kcal	44 kcal
Water	88.6 g	88.6 g
Energy (Atwater Specific Factors)	36 kcal	36 kcal
Nitrogen	0.39 g	0.39 g
Protein	2.41 g	2.41 g
Total lipid (fat)	0.20 g	0.20 g
Ash	0.62 g	0.62 g
Carbohydrate, by difference	8.17 g	8.17 g
Fiber, total dietary	4.17 g	4.17 g
Beta-glucan	2.92 g	2.92 g
Calcium, Ca	0.77 mg	0.77 mg
Iron, Fe	0.14 mg	0.14 mg
Magnesium, Mg	14.1 mg	14.1 mg
Phosphorus, P	75.8 mg	75.8 mg
Potassium, K	243.0 mg	243.0 mg
Sodium, Na	0.94 mg	0.94 mg

Estimates. Portion weights are the published averages for this food. A cup of chopped carrot and a cup of sliced carrot do not weigh the same, so treat the result as approximate.

About zeros. A value of 0 may mean the nutrient is genuinely absent, or that it was not measured / was below the limit of detection. USDA does not distinguish between the two, so this site does not use 0 values for filtering or for "free from" claims.

This converter does not use zero values to claim a food is free of anything, and it is not dietary or medical advice.

Nutrition per 100 g

51 nutrients reported for this food. "Samples" is the number of analytical samples the value is based on.

Nutrient	Per 100 g	Samples
Energy (Atwater General Factors)(chosen energy value)	44 kcal	—
Water	88.6 g	8
Energy (Atwater Specific Factors)	36 kcal	—
Nitrogen	0.39 g	8
Protein	2.41 g	—
Total lipid (fat)	0.20 g	8
Ash	0.62 g	8
Carbohydrate, by difference	8.17 g	—
Fiber, total dietary	4.17 g	8
Beta-glucan	2.92 g	8
Calcium, Ca	0.77 mg	8
Iron, Fe	0.14 mg	8
Magnesium, Mg	14.1 mg	8
Phosphorus, P	75.8 mg	8
Potassium, K	243.0 mg	8
Sodium, Na	0.94 mg	8
Zinc, Zn	0.76 mg	8
Copper, Cu	0.05 mg	8
Manganese, Mn	0.17 mg	8
Selenium, Se	1.24 µg	8
Thiamin	0.00 mg	8
Riboflavin	0.22 mg	8
Niacin	2.74 mg	8
Vitamin B-6	0.16 mg	8
Biotin	6.05 µg	8
Folate, total	32.1 µg	8
Vitamin D (D2 + D3), International Units	2 IU	—
Vitamin D (D2 + D3)	0.06 µg	—
Vitamin D2 (ergocalciferol)	0.06 µg	8
Vitamin D4	0 µg	8
Stigmasterol	0 mg	8
Campesterol	0 mg	8
Beta-sitosterol	0 mg	8
Ergosta-7-enol	6.41 mg	8
Ergosta-5,7-dienol	3.61 mg	8
Ergosta-7,22-dienol	1.51 mg	8
Ergosterol	61.2 mg	8
Beta-sitostanol	0 mg	8
Delta-5-avenasterol	0 mg	8
Delta-7-Stigmastenol	0 mg	8
Ergothioneine	11.1 mg	8
Tryptophan	0.29 g	8
Threonine	0.99 g	8
Isoleucine	0.79 g	8
Leucine	1.31 g	8
Lysine	1.17 g	8
Methionine	0.27 g	8
Phenylalanine	0.79 g	8
Valine	1.64 g	8
Histidine	0.44 g	8

Why there is only one energy value here

USDA publishes three different energy nutrients (IDs 1008, 2047, 2048) plus a kilojoule value. This page uses 2047 — Energy (Atwater General Factors) — falling back to the others only when it is absent. Sites that mix them can report different calorie counts for the same food.

Allergens: do not rely on this page

This dataset has no structured allergen field, and reference values describe a generic food — not the product you are holding. Always read the actual label before eating anything.

If you have a food allergy, treat this page as background information only.

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Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov. (Foundation Foods, release 2026-04-30) — https://fdc.nal.usda.gov/ · Data last updated 2026-09-27