Edible mushrooms are the fleshy fruit bodies of numerous species of properly identified and prepared fungi. Edibility may be defined by criteria including their palatability and absence of dangerous mycotoxins. Edible mushrooms are consumed for their nutritional and culinary value, often either being cultivated or harvested wild. Easily cultivated and common wild mushrooms are often available in markets; those that are more difficult to obtain may be collected on a smaller scale.
To ensure safety, wild mushrooms must be correctly identified before their edibility can be assumed. Deadly poisonous mushrooms that are frequently confused with edible mushrooms include several species of the genus Amanita , particularly A. phalloides (the death cap). Some mushrooms that are edible for most people can cause allergic reactions in others; old or improperly stored specimens can cause food poisoning. Additionally, mushrooms can absorb chemicals from polluted locations, accumulating pollutants and potentially lethal heavy metals.
Psychoactive mushrooms can also be confused with edible species. Additionally, mushrooms were consumed medicinally in traditional medicine, but are not upheld by evidence. Edible species typically must be cooked, sometimes requiring parboiling or slow cooking to destroy toxins, with only select species able to be eaten raw. Many can also be canned, dried, pickled, or salted.
Edibility may be defined by criteria including desirable taste and aroma and the absence of poisonous effects on humans. [1] Edible mushrooms are consumed for their nutritional and culinary value. Mushrooms, especially dried shiitake, are sources of umami flavor. [2] [3] Edible mushrooms include many fungal species that are either harvested wild or cultivated. [4]
Wild mushrooms can appear either below ground (hypogeous) or above ground (epigeous) and can be picked by hand. [5] Correct identification is required to prevent the confusion of potentially fatal poisonous mushrooms with edible ones. [6] [7] [8] Some edible species cannot be identified without the use of advanced techniques such as chemistry or microscopy. [9]
Easily cultivated and common wild mushrooms are often available in grocery stores and farmers' markets when in season; those that are more difficult to obtain (such as the truffle, matsutake, and morel) may be collected on a smaller scale and are sometimes even sold as luxury items. [10] Mushrooms can be purchased fresh and many are also sold dried. [11]
| Mushroom image | Part image | Scientific name | Common name | Description | Distribution | Cultivation | Edibility |
|---|---|---|---|---|---|---|---|
| | Agaricus arvensis | Horse mushroom [12] | Up to 20 cm (8 in) wide; resembles deadly Amanita species [13] | Britain and North America | Harvested wild | Edible for most people, but can resemble deadly Amanitas [14] | |
| Agaricus bisporus | Button mushroom, common mushroom, cremini, portobello, and others [15] [16] | As it ages, it turns from small, white and smooth to large and light brown. [16] | Widespread[ citation needed ] in rich soil [17] | Widely cultivated [17] | Edible and widely consumed [15] [16] | ||
| | | Agaricus campestris | Field mushroom | Up to 12 cm (4+1⁄2 in) wide; [18] resembles deadly Amanitas [19] | Widespread in grasses [20] | Harvested wild | Choice, [18] [21] but can resemble poisonous species [22] |
| | Agaricus silvaticus | Pinewood mushroom | Harvested wild | Edible cooked, [23] [24] but resembles some inedible species [25] | |||
| | Aleuria aurantia | Orange peel fungus | Harvested wild | Edible but difficult to collect [26] [27] | |||
| | Amanita caesarea | Caesar's mushroom | Resembles the poisonous Amanita muscaria [28] | Harvested wild | Edible, reportedly raw and cooked [29] | ||
| | Amanita fulva | Tawny grisette | Resembles poisonous Amanitas | Edible [30] cooked | |||
| | Amanita muscaria | Fly agaric | Parboiling is required. [31] When fresh, it contains the hallucinogen muscimol and some ibotenic acid. [32] | ||||
| | Amanita rubescens | Blusher | Resembles related species [33] | Eurasia, western North America | Edible when cooked, [34] which destroys a toxin [35] | ||
| | | Armillaria mellea | Honey mushroom | Harvested wild | Edible, usually excluding the tough stalk; [36] best when young and well-cooked [37] | ||
| | | Boletus badius | Bay bolete | Harvested wild | Edible but allergenic for some [38] [39] | ||
| | Boletus edulis | Porcino | Europe | Commercially harvested | Choice [40] | ||
| | | Boletus pinophilus | Pine bolete | Commercially harvested | Reportedly edible [41] | ||
| | Boletus variipes | Commercially harvested | Choice [42] | ||||
| | | Calbovista subsculpta | Sculptured giant puffball | Up to 15 cm (6 in) wide | Western North America in montane areas | Commercially harvested | Choice while the gleba is still firm and white [43] |
| | | Calocybe gambosa | St. George's mushroom | Harvested wild | Edible cooked or pickled [44] | ||
| | | Calvatia cyathiformis | Purple-spored puffball | Harvested wild | Reportedly edible when young [45] | ||
| | | Calvatia gigantea | Giant puffball | Up to 60 cm (20 in) wide and 20 kilograms (45 lb) [46] | Temperate areas around the world in meadows, fields, and deciduous forests from late summer and autumn [46] [47] | Commercially harvested | Choice when immature and white, but may cause a laxative effect [47] |
| | Calvatia utriformis (syn. Lycoperdon caelatum) | Harvested wild | Edible when immature and white [48] | ||||
| | | Cantharellus cibarius | Golden chanterelle | Europe [49] | Commercially harvested | Choice [50] but resembles some poisonous mushrooms [51] [52] | |
| | | Cerioporus squamosus | Dryad's saddle and pheasant's back mushroom | Harvested wild | Edible young and cooked [53] [54] | ||
| Chroogomphus | Pine-spikes or spike-caps | Northern Hemisphere | Harvested wild | Some edible species [55] | |||
| | Collybia nuda | Blewit [56] | Commercially harvested | Edible [56] | |||
| | | Collybia personata (syn. Lepista saeva) | Field blewit or blue leg | Edible [57] | |||
| | | Coprinopsis atramentaria (syn. Coprinus atramentarius) | Common inkcap | Northern Hemisphere and Australia [58] [59] | Edible when young but toxic if consumed with alcohol due to the presence of coprine [60] [61] | ||
| | Coprinus comatus | Shaggy mane, shaggy inkcap or lawyer's wig | North America in grasslands and meadows [62] | Harvested wild | Must be cooked as soon as possible after harvesting or the caps will darken as they deliquesce and turn to ink [63] [64] | ||
| | | Cortinarius caperatus | Gypsy mushroom | Commercially harvested | Choice, [65] but can resemble some poisonous European species [66] | ||
| | Craterellus cornucopioides | Trumpet of death or horn of plenty | Commercially harvested | Choice [67] | |||
| | Craterellus tubaeformis | Tube chanterelle or yellowfoot | Small mushroom | Commercially harvested | Choice [68] | ||
| | | Cyclocybe aegerita | Poplar | Commercially cultivated | Difficult to identify [69] [70] | ||
| | | Cyttaria espinosae | Chile [71] | Harvested wild | Edible [71] | ||
| | | Fistulina hepatica | Beefsteak polypore or ox tongue | Europe and North America [72] [73] | Harvested wild | Edible but older specimens should be soaked overnight then cooked to avoid gastric upset [73] | |
| | Flammulina filiformis | Enoki | Commercially cultivated | Asian cuisine [74] | |||
| | | Flammulina velutipes | Velvet shank | Europe and North America [75] [76] | Harvested wild | Edible cooked, best with the skin removed [77] | |
| Gomphidius glutinosus | Slimy spike-cap | Harvested wild | Edible [78] [79] but possibly not recommended; accumulates heavy metals [80] | ||||
| | | Grifola frondosa | Hen of the woods or sheep's head | Large mushroom | Eastern North America | Commercially harvested | Choice [81] but some may be allergic [82] |
| | Gyromitra esculenta | False morel, turban or brain mushroom | North America and Central Europe [83] [84] | Parboiling required to reduce gyromitrin toxicity, which may not be fully effective [85] | |||
| | Hericium erinaceus | Lion's mane [86] | A tooth fungus | Commercially harvested | |||
| | | Hydnum repandum | Sweet tooth or hedgehog mushroom [87] | Commercially harvested | |||
| | | Hygrophorus chrysodon | Gold flecked woodwax | Northern Hemisphere [88] | Harvested wild | Edible but bland [89] [90] | |
| | | Hypsizygus tessulatus | Beech mushroom | Commercially cultivated | Tough flesh [91] | ||
| Kalaharituber pfeilii | Southern Africa [92] | Harvested wild | Edible [92] | ||||
| Laccocephalum mylittae | Blackfellow's bread | Harvested wild | Edible but not choice [93] | ||||
| | | Lactarius corrugis | Eastern North America with oak, July–Sept. [94] | Choice [95] | |||
| | | Lactarius deliciosus | Saffron milk cap | Commercially harvested | Not necessarily choice, but popular in Russia [96] | ||
| | | Lactarius deterrimus | Orange milkcap | Harvested wild | Edible [97] | ||
| | Lactarius hygrophoroides | Eastern North America with oak, June–Sept. [98] | Edible [99] | ||||
| | | Lactarius indigo | Northern Hemisphere [100] [101] [102] | Harvested wild | Edible [103] | ||
| | | Lactarius paradoxus | Southern and eastern U.S., autumn–winter [104] | Edible but bitter with age [104] | |||
| | | Lactarius rubrilacteus | Western North America, June–Oct. [105] | Harvested wild | Edible but grainy [106] | ||
| | Lactarius subdulcis | Mild milkcap | Harvested wild | Edible when cooked but not choice [107] | |||
| | | Lactarius volemus | Fishy milkcap | Harvested wild | Edible but grainy; best slow-cooked [108] | ||
| Laetiporus sulphureus | Sulphur shelf, chicken mushroom | A distinct bracket fungus | Harvested wild | Edible when watery, after cooking [109] [110] | |||
| | Leccinum aurantiacum | Red-capped scaber stalk | Eurasia | Harvested wild | Edible cooked, with risk of toxicity; [111] [112] linked to one death [113] | ||
| | Leccinum scabrum | Birch bolete | Europe, [114] North America [115] and New Zealand [116] | Harvested wild | Edible when firm [115] | ||
| | Leccinum versipelle (syn. Boletus testaceoscaber) | Orange birch bolete | Europe, Aug.–Nov. [117] | Harvested wild | Edible cooked [117] | ||
| | Lentinula edodes | Shiitake | Southeast Asia [118] | Commercially cultivated worldwide [119] | Edible; [2] may cause dermatitis for some unless cooked [120] [121] | ||
| Macrolepiota procera | Parasol mushroom | Globally widespread in temperate regions | Harvested wild | Choice but resembles some poisonous species [122] [123] | |||
| | | Marasmius oreades | Fairy ring champignon | Harvested wild | Choice [123] | ||
| Morchella spp. including Morchella esculenta | Morels | Can resemble poisonous false morels including Gyromitra esculenta | Open scrub, woodland or open ground in late spring | Commercially harvested; difficult to grow commercially [124] | Potentially toxic if uncooked or consumed with alcohol [125] [126] [127] | ||
| Phallus indusiatus | Basket stinkhorn | Commercially cultivated | Asian cuisine [128] | ||||
| | | Pleurotus ostreatus | Oyster mushroom | Commercially cultivated at an industrial scale [129] | Choice [130] but resembles inedible Lentinellus species [131] [132] | ||
| | | Pseudohydnum gelatinosum | Toothed jelly fungus | Harvested wild | Edible raw [133] | ||
| | | Sparassis crispa | Cauliflower mushroom | Harvested wild | Edible when young; [134] best slow-cooked [135] | ||
| | Stropharia rugosoannulata | Wine cap | Commercially cultivated | Choice [136] | |||
| | | Suillus bovinus | Bovine bolete | Harvested wild | Edible [137] | ||
| | | Suillus brevipes | Short-stemmed slippery Jack | Harvested wild | Edible [138] | ||
| | | Suillus decipiens | Harvested wild | Edible [139] | |||
| | Suillus granulatus | Weeping bolete, granulated bolete | Harvested wild | Edible [140] | |||
| | | Suillus grevillei | Tamarack jack | Harvested wild | Edible cooked, with the cap cuticle removed [139] [141] | ||
| | Suillus luteus | Slippery jack | Harvested wild | Edible with the cap cuticle removed; [142] [143] allergenic for some [144] | |||
| | Suillus spraguei | Painted suillus | Harvested wild | Edible [145] | |||
| | Suillus tomentosus | Woolly-capped suillus | Harvested wild | Can cause gastric upset [145] | |||
| | | Tremella fuciformis | White jelly mushroom | Commercially cultivated | Asian sweet dishes for texture [146] | ||
| | | Tricholoma matsutake | Matsutake | Up to 35 cm wide [147] | Eurasia and northern North America in forests [147] | Commercially harvested [148] | Prized in Japanese cuisine [149] but can resemble Inocybe pyriodora , a poisonous species with brown spores [147] |
| | | Tricholoma portentosum | Streaked tricholoma | Up to 11 cm wide [150] | Europe and North America, coniferous woodland [151] | Harvested wild | Edible but resembles poisonous relatives [151] |
| | | Tricholoma terreum | Grey knight | Edible but can cause rhabdomyolysis if eaten in large quantities [152] | |||
| | Tuber aestivum | Summer truffle | Up to 10 cm wide [153] | France, Italy and Spain [153] | Commercially harvested [153] | ||
| | | Tuber borchii | Bianchetto truffle | Commercially cultivated (experimental) [154] | |||
| | Tuber melanosporum | Black truffle | Southern Europe | Commercially cultivated [155] | Choice [155] | ||
| Ustilago maydis | Corn smut | Pathogens of cereals | Harvested wild | Considered a delicacy in Mexico; used as fillings in quesadillas, tacos and soups [156] | |||
| | Verpa bohemica | Edible cooked, initially only in small portions; [157] contains a toxin similar to gyromitrin [158] | |||||
| | Volvariella bombycina | Silky rosegill [159] | Commercially cultivated | ||||
| | Volvariella volvacea | Paddy straw mushroom or straw mushroom [159] | Commercially cultivated |
| 47,143,126 | |
| 462,158 | |
| 302,390 | |
| 240,400 | |
| 205,000 | |
| World | 50,010,109 |
| Source: FAOSTAT of the United Nations [160] | |
Mushroom cultivation has a long history, with over twenty species commercially cultivated. Mushrooms are cultivated in at least 60 countries. [161] A fraction of the many fungi consumed by humans are currently cultivated and sold commercially. Commercial cultivation is important ecologically, as there have been concerns of the depletion of larger fungi such as chanterelles in Europe, possibly because the group has grown popular yet remains a challenge to cultivate.[ citation needed ] Some mushrooms, particularly mycorrhizal species, have not yet been successfully cultivated.[ citation needed ]
In 2023, world production of commercial mushrooms and recorded truffle collection reported to the Food and Agriculture Organization was 50 million tonnes, led by China with 94% of the total (table).
Some wild species are toxic, or at least indigestible, when raw. [6] Failure to identify poisonous mushrooms and confusing them with edible ones has resulted in death. [6] [7] [8] Although in the 21st century primitive digital applications exist to aid with identification, these are unreliable and some inexperienced hunters relying upon them have been seriously poisoned. [162]
Deadly poisonous mushrooms that are frequently confused with edible mushrooms and responsible for many fatal poisonings include several species of the genus Amanita , particularly A. phalloides (the death cap). Some mushrooms that are edible for most people can cause allergic reactions in some individuals with no prior knowledge of an allergy; old or improperly stored specimens can go rancid quickly and cause food poisoning. [163] When eating any fungus for the first time, only a small quantity of one species should be consumed at a time, allowing for several hours to identify any potential allergic reaction. [164] Even normally edible species of mushrooms may be dangerous, as certain mushrooms growing in polluted locations can act as chemical-absorbers, accumulating pollutants and heavy metals, including arsenic and iron, sometimes in lethal concentrations. [165] On the other hand, some cooking preparations may reduce the toxicity of slightly poisonous mushrooms enough to be consumed as survival food; for example, many prized fungi will cause gastric upset when eaten uncooked, such as Morchella species. [125]
Additionally, several varieties of fungi are known and documented to contain psychedelic drugs—the so-called magic mushrooms—yet resemble perfectly edible, non-psychoactive species. While not necessarily lethal to consume, to the uninitiated, an accidentally induced psychedelic experience can run the gamut from benign to terrifying, even depressing or psychotic. The most commonly consumed for recreational psychoactive use are Amanita muscaria (the fly agaric) and Psilocybe cubensis , with the former containing alkaloids such as muscimol and the latter predominately psilocybin.[ citation needed ] Both have the potential to induce in the user feelings of awe, wonder with nature, interesting visual hallucinations and inner peace (even in mild doses), but excessive or accidental consumption can create feelings of insanity, helplessness and fear, usually persisting for a few hours.[ citation needed ]
| Nutritional value per 100 g (3.5 oz) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy | 117 kJ (28 kcal) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
5.3 g | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
0.5 g | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
2.2 g | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other constituents | Quantity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Water | 91.1 g | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| †Percentages estimated using US recommendations for adults, [166] except for potassium, which is estimated based on expert recommendation from the National Academies. [167] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Boiled Agaricus mushrooms are 92% water, 3% carbohydrates, 3% protein, and 0.3% fat (table). In a reference amount of 100 grams (3.5 oz), boiled white Agaricus mushrooms supply 28 calories of food energy and rich contents (20% or more of the Daily Value, DV) of riboflavin, niacin, and pantothenic acid, copper, and selenium (23-56% DV), with a moderate content of potassium (12% DV, table). Otherwise, raw white mushrooms generally have low amounts of micronutrients (table).
The content of vitamin D is absent or low unless mushrooms are exposed to sunlight or purposely treated with artificial ultraviolet light, even after harvesting and being processed into dry powder. [168] [169]
| Name | Chemical composition | Structure |
|---|---|---|
| Vitamin D1 | ergocalciferol with lumisterol, 1:1 [170] | |
| Vitamin D2 | ergocalciferol (made from ergosterol) | |
| Vitamin D3 | cholecalciferol (made from 7-Dehydrocholesterol in the skin). | |
When exposed to UV light before or after harvest, mushrooms convert their large concentrations of ergosterol into vitamin D2. [168] [169] This is similar to the reaction in humans, where vitamin D3 is synthesized after exposure to sunlight.
Testing showed an hour of UV light exposure before harvesting made a serving of mushrooms contain twice the U.S. Food and Drug Administration's daily recommendation of vitamin D. With 5 minutes of artificial UV light exposure after harvesting, a serving of mushrooms contained four times as much. [168] Analysis also demonstrated that natural sunlight produced vitamin D2. [169]
The form of vitamin D found in UV-irradiated mushrooms is ergocalciferol, or vitamin D2. This is not the same as cholecalciferol, called vitamin D3, which is produced by UV-irradiation of human or animal skin, fur, and feathers. Although vitamin D2 has vitamin-D activity in humans, and is widely used in food fortification and nutritional supplements, vitamin D3 is more commonly used in dairy and cereal products.[ citation needed ]
As of 2021 [update] , mushroom consumption has not been shown to conclusively affect risk factors for cardiovascular diseases. [171]
The accurate determination of and proper identification of a species is required to ensure its edibility and to safeguard against poisoning. [6] [7] [8]
The earliest evidence of consumption of mushrooms comes from 13,000-year-old archaeological sites in Chile.[ citation needed ] Ötzi, the mummy of a man who lived between 3400 and 3100 BCE in Europe, was found with two types of mushroom in his belongings.[ citation needed ] Ancient Romans and Greeks, particularly the upper classes, used mushrooms for culinary purposes. Food tasters were employed by Roman emperors to ensure that mushrooms were safe to eat. [172] The Forme of Cury , a 14th-century compilation of medieval English recipes, features a recipe of mushrooms and leeks cooked in broth. [173]
A minimal amount of water should be used to clean specimens, ideally in the field. [164] Only select species can be safely eaten raw. [174]
Cooking mushrooms before consumption is often required, both to eliminate mycotoxins, including trace levels of toxic hydrazines, and also to improve palatability and texture. [175] Frying, roasting, baking, and microwaving are all used to prepare mushrooms. Cooking lowers the amount of water present in the food. Chitin, a structural polymer in the cell walls of mushrooms, does not break down until 380 °C (716 °F), which is not reached in any normal cooking. [176] [177] However, chitin connections may be broken down by cooking, allowing for easier digestion. [175]
Mushrooms should be used as soon as possible, even if refrigerated (particularly Coprinus species). [164] Mushrooms can be frozen, but they freeze best when cooked first. [178] Those that do not require cooking can also be canned, dried, pickled, or salted. [179]
Medicinal mushrooms are mushrooms or extracts from mushrooms that are thought to be treatments for diseases, yet remain unconfirmed in mainstream science and medicine, and so are not approved as drugs or medical treatments. [180] Such use of mushrooms therefore falls into the domain of traditional medicine [181] for which there is no direct high-quality clinical evidence of efficacy. [182] [183] (Since about the mid-20th century, some compounds found in fungi have been developed scientifically for medicine, e.g. antibiotics.) [184] [185] [186]
Preliminary research on mushroom extracts has been conducted to determine if anti-disease properties exist, such as for polysaccharide-K [187] or lentinan. [188] Some extracts have widespread use in Japan, Korea and China, as potential adjuvants for radiation treatments and chemotherapy. [189] [190]