Calories in Mushrooms, raw
Generic food Raw Vegetables
Mushrooms, raw contains 31 kcal per 100 g. A typical serving of 1 piece/slice (6 g) provides about 2 kcal.
Roughly 53% of its calories come from carbohydrates, with 37% from protein and 10% from fat (estimated with general energy factors).
That is less energy than the typical item in other vegetables and combinations on FoodFactly, where the median is 46 kcal per 100 g across 135 foods.
100 g provides 40% of the Daily Value for copper, 35% of the Daily Value for Riboflavin (B2) and 35% of the Daily Value for selenium.
These values are for the raw food. Cooking changes the water content and some nutrients, so cooked versions are listed separately below.
The data comes from the USDA Food and Nutrient Database for Dietary Studies (FNDDS), which calculates values from recipes of the ingredients.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 31 kcal | |
| Total fat C | 0.35 g | 0.4% |
| Saturated fat C | 0.05 g | 0.3% |
| Cholesterol C | 0 mg | 0% |
| Sodium C | 6 mg | 0.3% |
| Total carbohydrates C | 4.1 g | 2% |
| Dietary fiber C | 1.7 g | 6% |
| Total sugars C | 2 g | |
| Protein C | 2.9 g | 6% |
| Vitamin A C | 0 µg | 0% |
| Vitamin C C | 2.1 mg | 2% |
| Vitamin D C | 0 µg | 0% |
| Vitamin E C | 0.01 mg | 0.1% |
| Vitamin K C | 0 µg | 0% |
| Thiamin (B1) C | 0.053 mg | 4% |
| Riboflavin (B2) C | 0.45 mg | 35% |
| Niacin (B3) C | 3.9 mg | 24% |
| Vitamin B6 C | 0.082 mg | 5% |
| Folate (B9) C | 35 µg | 9% |
| Vitamin B12 C | 0.04 µg | 2% |
| Choline C | 17.3 mg | 3% |
| Calcium C | 5 mg | 0.4% |
| Iron C | 0.23 mg | 1% |
| Magnesium C | 10 mg | 2% |
| Phosphorus C | 93 mg | 7% |
| Potassium C | 371 mg | 8% |
| Zinc C | 0.5 mg | 5% |
| Copper C | 0.36 mg | 40% |
| Selenium C | 19 µg | 35% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 37%
- Carbohydrates 53%
- Fat 10%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein2.9 gin the top quarter of other vegetables and combinations (median 2 g)
- Fiber1.7 gbelow the median for other vegetables and combinations (median 2.2 g)
- Sugars2 gbelow the median for other vegetables and combinations (median 2.4 g)
- Fat0.35 gin the lowest quarter of other vegetables and combinations (median 2.7 g)
- Saturated fat0.05 gin the lowest quarter of other vegetables and combinations (median 0.69 g)
- Sodium6 mgin the lowest quarter of other vegetables and combinations (median 138 mg)
- Protein per 100 kcal9.4 gprotein density, useful for comparing foods with different calorie levels
- Water91.8 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Fats and cholesterol (2)
| Monounsaturated fat C | 0 g |
|---|---|
| Polyunsaturated fat C | 0.16 g |
Individual fatty acids (19)
| EPA (omega-3, 20:5 n-3) C | 0 g |
|---|---|
| DHA (omega-3, 22:6 n-3) C | 0 g |
| Linoleic acid (omega-6, 18:2) C | 0.16 g |
| SFA 4:0 C | 0 g |
| SFA 6:0 C | 0 g |
| SFA 8:0 C | 0 g |
| SFA 10:0 C | 0 g |
| SFA 12:0 C | 0 g |
| SFA 14:0 C | 0 g |
| SFA 16:0 C | 0.04 g |
| SFA 18:0 C | 0.01 g |
| MUFA 18:1 C | 0 g |
| PUFA 18:3 C | 0 g |
| PUFA 20:4 C | 0 g |
| MUFA 16:1 C | 0 g |
| PUFA 18:4 C | 0 g |
| MUFA 20:1 C | 0 g |
| MUFA 22:1 C | 0 g |
| PUFA 22:5 n-3 (DPA) C | 0 g |
Carotenoids (6)
| Beta-carotene C | 0 µg |
|---|---|
| Lycopene C | 0 µg |
| Lutein + zeaxanthin C | 0 µg |
| Retinol C | 0 µg |
| Carotene, alpha C | 0 µg |
| Cryptoxanthin, beta C | 0 µg |
Other components (8)
| Water C | 91.8 g |
|---|---|
| Alcohol C | 0 g |
| Caffeine C | 0 mg |
| Theobromine C | 0 mg |
| Folic acid C | 0 µg |
| Folate, food C | 35 µg |
| Vitamin E, added C | 0 mg |
| Vitamin B-12, added C | 0 µg |
Other forms of Mushrooms
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Mushrooms, Chanterelle, raw Raw | 32 | 1.5 g | 6.9 g | 0.53 g |
| Mushrooms, morel, raw Raw | 31 | 3.1 g | 5.1 g | 0.57 g |
| Mushrooms, brown, italian, or crimini, raw Raw | 22 | 2.5 g | 4.3 g | 0.1 g |
| Mushrooms, shiitake, stir-fried Cooked | 39 | 3.5 g | 7.7 g | 0.35 g |
| Mushrooms, shiitake, dried Dried or dry | 296 | 9.6 g | 75.4 g | 0.99 g |
| Mushrooms, shiitake, cooked, without salt Cooked | 56 | 1.6 g | 14.4 g | 0.22 g |
| Mushrooms, white, cooked, boiled, drained, with salt Cooked | 28 | 2.2 g | 5.3 g | 0.47 g |
| Mushrooms, brown, italian, or crimini, exposed to ultraviolet light, raw Raw | 22 | 2.5 g | 4.3 g | 0.1 g |
| Mushrooms, oyster, raw Raw | 33 | 3.3 g | 6.1 g | 0.41 g |
| Mushrooms, straw, canned, drained solids Canned | 32 | 3.8 g | 4.6 g | 0.68 g |
| Mushrooms, shiitake, raw Raw | 34 | 2.2 g | 6.8 g | 0.49 g |
| Mushrooms, portabella, grilled Cooked | 29 | 3.3 g | 4.4 g | 0.58 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Asparagus, raw Raw | 20 | 2.2 g | 3.9 g | 0.12 g |
| Cauliflower, raw Raw | 25 | 1.9 g | 5 g | 0.28 g |
| Spinach, raw Raw | 23 | 2.9 g | 3.6 g | 0.39 g |
| Broccoli, raw Raw | 34 | 2.8 g | 6.6 g | 0.37 g |
| Romaine lettuce, raw Raw | 17 | 1.2 g | 3.3 g | 0.3 g |
| Green bell pepper, raw Raw | 20 | 0.86 g | 4.6 g | 0.17 g |
| Zucchini, raw Raw | 17 | 1.2 g | 3.1 g | 0.32 g |
| Tomato, red, ripe, raw Raw | 18 | 0.88 g | 3.9 g | 0.2 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw mushrooms?
100 g of raw mushrooms has 31 kcal. 1 piece/slice (6 g): about 2 kcal. 1 whole (18 g): about 6 kcal. 1 cup (70 g): about 22 kcal.
How much protein is in raw mushrooms?
Raw mushrooms contains 2.9 g of protein per 100 g (6% of the 50 g Daily Value), or 0.17 g in 1 piece/slice (6 g). About 37% of its calories come from protein. Compared with other other vegetables and combinations, that is among the highest quarter (median 2 g).
How many carbs are in raw mushrooms?
Raw mushrooms has 4.1 g of total carbohydrates per 100 g, including 1.7 g of fiber and 2 g of sugars.
How much fat is in raw mushrooms?
Raw mushrooms contains 0.35 g of fat per 100 g, of which 0.05 g is saturated (0.3% of the Daily Value).
What vitamins and minerals does raw mushrooms contain?
Per 100 g, the most notable amounts relative to the Daily Value are copper (40% DV), Riboflavin (B2) (35% DV), selenium (35% DV) and Niacin (B3) (24% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw mushrooms?
100 g contains 6 mg of sodium, 0.3% of the 2,300 mg Daily Value.
Does mushrooms have the same nutrition raw and cooked?
No. Per 100 g, mushrooms, raw has 31 kcal, while mushrooms, shiitake, stir-fried has 39 kcal. Cooking changes the water content, so always use the record that matches how you weigh the food.
Where does this nutrition data come from?
From USDA FoodData Central: FNDDS (Survey), record dated October 31, 2024. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: FNDDS (Survey), record 2709793. License: CC0 1.0 (U.S. public domain). Source record dated October 31, 2024. Imported November 6, 2026.
Last updated: . Data quality score: 100/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.