Maitake Mushroom — USDA FoodData Central nutrition facts (per 100g)

| Nutrient | Amount per 100g |
| --- | --- |
| Ash | 0.558 g |
| Beta-glucan | 2.26 g |
| Beta-sitostanol | 0 mg |
| Beta-sitosterol | 0 mg |
| Biotin | 32.6 µg |
| Calcium, Ca | 0 mg |
| Campesterol | 0 mg |
| Carbohydrate, by difference | 6.6 g |
| Copper, Cu | 0.272 mg |
| Delta-5-avenasterol | 0 mg |
| Delta-7-Stigmastenol | 0 mg |
| Energy | 37.6 kcal |
| Energy (Atwater General Factors) | 37.6 kcal |
| Energy (Atwater Specific Factors) | 31 kcal |
| Ergosta-5,7-dienol | 2.89 mg |
| Ergosta-7-enol | 1.42 mg |
| Ergosta-7,22-dienol | 1.17 mg |
| Ergosterol | 59.3 mg |
| Ergothioneine | 2.25 mg |
| Fiber, total dietary | 3.07 g |
| Glutathione | 26 mg |
| Histidine | 0.907 g |
| Iron, Fe | 0.209 mg |
| Isoleucine | 1.57 g |
| Leucine | 2.52 g |
| Lysine | 2.21 g |
| Magnesium, Mg | 11 mg |
| Manganese, Mn | 0.058 mg |
| Methionine | 0.313 g |
| Niacin | 6.76 mg |
| Nitrogen | 0.352 g |
| Phenylalanine | 1.62 g |
| Phosphorus, P | 72.4 mg |
| Potassium, K | 260 mg |
| Protein | 2.2 g |
| Riboflavin | 0.269 mg |
| Selenium, Se | 3.27 µg |
| Sodium, Na | 0.345 mg |
| Stigmasterol | 0 mg |
| Thiamin | 0.01 mg |
| Threonine | 1.81 g |
| Total lipid (fat) | 0.265 g |
| Tryptophan | 0.371 g |
| Valine | 2.82 g |
| Vitamin B-6 | 0.071 mg |
| Vitamin D (D2 + D3) | 1.6 µg |
| Vitamin D (D2 + D3), International Units | 64 IU |
| Vitamin D2 (ergocalciferol) | 1.6 µg |
| Vitamin D4 | 0.135 µg |
| Water | 90.4 g |
| Zinc, Zn | 0.763 mg |

Values are raw as published by USDA at the 100g basis — not rounded per 21 CFR 101.9(c) label-declaration rules, and 100g is USDA's publication basis, not a serving size any US nutrition label declares against.

Source: USDA FoodData Central, FDC ID 2003602, usda_ff (released 2026-04-30). https://bettermenu.live/tools/ingredient-search/us/foods/maitake-mushroom-2003602/