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Edible mushrooms in a grocery store come in more shapes than the familiar white button, and USDA FoodData Central lists nutrient values for nine of them in its SR Legacy data. This guide covers the types of mushrooms you are likely to find fresh, from white, crimini and portabella caps to oyster mushrooms, enoki, maitake, chanterelles, morels and shiitake, and ranks them by potassium per cup with protein, fiber, riboflavin and niacin. It does not cover picking mushrooms in the wild, which the California Department of Public Health (CDPH) advises against.
Peptide Labs does not sell foods. This article is general nutrition information, not medical advice.
Key Takeaways
- White button, crimini and portabella mushrooms are one species, Agaricus bisporus, according to a University of Wisconsin-Madison mycology page; they differ by strain and by when they are harvested.
- In USDA data a cup of sliced raw oyster caps lists about 361 milligrams of potassium, the highest of the nine entries here, and a cup of diced raw maitake about 143 milligrams.
- Several types list a large share of the FDA Daily Value for niacin per cup in USDA data: about 29% for enoki and maitake and 27% for the oyster entry.
- Mushrooms are low in calories per cup in USDA data, from about 15 for raw white mushrooms to 28 for raw oyster caps; cooked shiitake lists 81 because a cooked cup holds more weight.
- CDPH says the way to stay out of danger is not to pick and eat wild mushrooms, and to call the free California hotline CDPH lists, 1-800-222-1222, right away if someone has eaten one.
Types of edible mushrooms in stores
The list below follows the mushrooms USDA has entries for. Each name links to a full guide on this site where one exists.
- White button: the small, pale cap most shoppers know. A University of Wisconsin-Madison mycology page notes that most button strains are harvested before the veil under the cap breaks.
- Crimini: a brown strain of the same species, Agaricus bisporus; the Wisconsin page describes crimini as the brown strain that is not allowed to open before harvest.
- Portabella: the large, open brown cap. The same Wisconsin page calls portabella a marketing name for brown strains of Agaricus bisporus that are allowed to open and expose the gills. Our portobello guide covers it in detail.
- Oyster: fan-shaped caps that grow in clusters; see our guide to oyster mushrooms.
- Enoki: long thin stems with tiny caps, sold in bundles; see our enoki guide.
- Maitake: a ruffled cluster sold whole or in pieces; see our maitake guide.
- Shiitake: brown caps with tough stems, sold fresh and dried; see our shiitake guide.
- Chanterelle and morel: seasonal types that markets sell fresh or dried; our chanterelle guide and morels guide cover them. Get them from a store rather than the woods, for the reasons CDPH gives in the section below.
Edible mushrooms ranked by USDA potassium per cup
The table uses USDA FoodData Central SR Legacy entries, raw except shiitake, which USDA lists cooked. Servings are the USDA one-cup portion, so the weight differs by type: a cup of raw chanterelles weighs 54 grams and a cup of cooked shiitake 145 grams. Each percent Daily Value (%DV) uses the FDA Daily Values for adults and children 4 and older: 50 grams of protein, 28 grams of dietary fiber, 4,700 milligrams of potassium, 1.3 milligrams of riboflavin and 16 milligrams of niacin.
| Mushroom (USDA FDC ID) | Serving | Calories | Protein | Fiber | Potassium | Riboflavin | Niacin |
|---|---|---|---|---|---|---|---|
| Mushrooms, oyster, raw, sliced (168580) | 1 cup, 86 g | 28 | 2.8 g (6%) | 2.0 g (7%) | 361 mg (8%) | 0.30 mg (23%) | 4.3 mg (27%) |
| Mushrooms, crimini, raw, sliced (168434) | 1 cup, 72 g | 16 | 1.8 g (4%) | 0.4 g (2%) | 323 mg (7%) | 0.35 mg (27%) | 2.7 mg (17%) |
| Mushrooms, portabella, raw, diced (169255) | 1 cup, 86 g | 19 | 1.8 g (4%) | 1.1 g (4%) | 313 mg (7%) | 0.11 mg (9%) | 3.9 mg (24%) |
| Mushrooms, chanterelle, raw (168422) | 1 cup, 54 g | 17 | 0.8 g (2%) | 2.1 g (7%) | 273 mg (6%) | 0.12 mg (9%) | 2.2 mg (14%) |
| Mushrooms, morel, raw (168423) | 1 cup, 66 g | 20 | 2.1 g (4%) | 1.8 g (7%) | 271 mg (6%) | 0.14 mg (10%) | 1.5 mg (9%) |
| Mushrooms, enoki, raw, sliced (169382) | 1 cup, 65 g | 24 | 1.7 g (3%) | 1.8 g (6%) | 233 mg (5%) | 0.13 mg (10%) | 4.6 mg (29%) |
| Mushrooms, white, raw, pieces or slices (169251) | 1 cup, 70 g | 15 | 2.2 g (4%) | 0.7 g (2%) | 223 mg (5%) | 0.28 mg (22%) | 2.5 mg (16%) |
| Mushrooms, shiitake, cooked, pieces (168437) | 1 cup, 145 g | 81 | 2.3 g (5%) | 3.0 g (11%) | 170 mg (4%) | 0.25 mg (19%) | 2.2 mg (14%) |
| Mushrooms, maitake, raw, diced (169403) | 1 cup, 70 g | 22 | 1.4 g (3%) | 1.9 g (7%) | 143 mg (3%) | 0.17 mg (13%) | 4.6 mg (29%) |
What the USDA numbers show
Potassium spreads widely across the list. In USDA data, raw oyster, crimini and portabella cups list about 361, 323 and 313 milligrams, while maitake lists about 143 milligrams, so the type changes the figure more than the label of mushroom does. Our potassium foods list puts these numbers next to other foods.
The B vitamins stand out more than protein. A cup of raw crimini lists about 0.35 milligrams of riboflavin, 27% of the FDA Daily Value, and raw white mushrooms about 0.28 milligrams, 22%, in USDA data; enoki and maitake each list about 4.6 milligrams of niacin per cup, 29% of the FDA Daily Value. Protein per cup runs from about 0.8 grams for chanterelles to 2.8 grams for the oyster entry in USDA data. Our riboflavin foods list and niacin foods list rank other sources.
Cooked shiitake looks different from the rest because USDA weighs a cooked cup at 145 grams, about twice the raw cups: the entry lists about 20.9 grams of carbohydrate and 3.0 grams of fiber per cup in USDA data. Fresh, dried and canned forms all differ, and the Nutrition Facts label on a package is the figure for that product.
Where mushrooms sit in the Dietary Guidelines
The Dietary Guidelines for Americans, 2020-2025, list mushrooms among the examples of other vegetables, the same subgroup as onions, okra and summer squash. Our general mushrooms guide covers the white mushroom in more depth, and our types of squash guide covers another vegetable from that subgroup.
Wild mushrooms: why this list stops at the store
The California Department of Public Health is direct about wild mushrooms: CDPH says the way to stay out of danger is to not pick and eat wild mushrooms, and to avoid eating wild mushrooms picked by friends or family. CDPH warns that the dangerous mushrooms can look and taste like edible ones, can even look like mushrooms sold in grocery stores depending on their stage of growth, and that even people with years of experience picking wild mushrooms can mistake them for edible ones.
- Cooking does not change it: CDPH says the dangerous mushrooms stay dangerous even after cooking, boiling, freezing or drying.
- Symptoms can be delayed: CDPH says symptoms may not appear until 6 to 24 hours after eating a dangerous mushroom.
- Do not wait: CDPH tells anyone who may have eaten one not to wait for symptoms to appear, to seek medical care immediately and to call the free California hotline CDPH lists, 1-800-222-1222.
- Store-bought: CDPH advises getting mushrooms from trusted grocery stores and retailers.
Mushrooms sold as teas and dried products
Some mushrooms reach shoppers mainly as dried products and drinks rather than fresh vegetables, and USDA SR Legacy has no entries for them, so they are not in the table. Each has its own guide on this site: reishi, chaga, cordyceps, lion’s mane and mushroom coffee. This list makes no claims about them.
Frequently Asked Questions
What are the most common types of edible mushrooms in stores?
White button, crimini and portabella, which a University of Wisconsin-Madison mycology page identifies as one species, followed by oyster, shiitake, enoki and maitake; USDA has SR Legacy entries for all of them.
Are crimini and portabella the same mushroom?
Yes, according to the University of Wisconsin-Madison page: both are brown strains of Agaricus bisporus, and crimini is harvested before the cap opens while portabella is allowed to open.
Which mushroom lists the most potassium per cup?
In USDA data, a cup of sliced raw oyster caps lists about 361 milligrams, 8% of the FDA Daily Value, followed by crimini at about 323 milligrams.
Do mushrooms have protein?
A little. USDA lists about 0.8 to 2.8 grams per cup across the nine entries here, against an FDA Daily Value of 50 grams.
Is it all right to pick wild mushrooms to eat?
The California Department of Public Health advises not picking and eating wild mushrooms at all, and says cooking does not make the dangerous ones edible.
What should I do if someone ate a wild mushroom?
CDPH says not to wait for symptoms, to seek medical care immediately and to call the free California hotline CDPH lists, 1-800-222-1222.
Questions about a label? Contact us or read our Buyer’s Guide. Food comes first; follow the label and ask a healthcare provider before starting a supplement, especially if you take medicines, are pregnant or have a health condition. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed October 2026.
Related guides: Types of Squash: Summer and Winter Kinds with USDA Values, Mushrooms Nutrition: Calories, Vitamin D and Are They Healthy?, Oyster Mushrooms (Pleurotus ostreatus): Nutrition and How to Cook Them.