
Mushrooms are unique organisms that belong to the kingdom fungi, which also includes yeasts, mildews, moulds, rusts, and smuts. They are biologically distinct from plant- and animal-derived foods, with a unique nutrient profile that includes vitamins, minerals, and amino acids. With their umami or savoury flavour, mushrooms make for a suitable meat substitute and can enhance the taste and texture of dishes. While the standard mushroom refers to the cultivated white button mushroom, there are over 2000 varieties of edible mushrooms, each with distinct characteristics.
| Characteristics | Values |
|---|---|
| Definition | Mushrooms are the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or another food source. |
| Scientific Classification | Mushrooms are not plants or animals. They are a type of fungus and belong to the kingdom Fungi, along with yeasts, mildews, molds, rusts, and smuts. |
| Nutrient Profile | Mushrooms are cholesterol-free and contain small amounts of essential amino acids and B vitamins. They also contain ergothioneine. They are also a good source of moisture, umami or savory flavor, and have a low energy density (about 90% water). |
| Taste | Mushrooms have a unique taste called umami, which is a fifth primary taste in addition to sweet, salty, bitter, and sour. |
| Texture | Mushrooms have a unique texture that makes them a healthy and delicious addition to diets. |
| Varieties | Some common varieties of mushrooms include white button, crimini, portobello, shiitake, straw, oyster, enoki, chanterelle, porcini, lion's mane, morel, and false morel. |
| Uses | Mushrooms are used in cooking and offer a range of medicinal and nutritional benefits. They are also used in the cultivation of edible mushrooms and as a status symbol in some cultures. |
| Poisonous Mushrooms | Eating poisonous mushrooms can lead to food poisoning and even death, as seen in some reported outbreaks. |
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What You'll Learn

Mushrooms are a fungus, not plants or animals
Mushrooms are biologically distinct from plant- and animal-derived foods. They contain chitin, a polysaccharide derivative of glucose also found in the exoskeletons of crustaceans and insects, rather than cellulose found in plants. They also contain ergosterol, a unique sterol not found in mammalian cells.
Mushrooms have a unique taste and texture, making them a versatile ingredient in various dishes. They are known for their umami or savoury flavour, which makes them a suitable substitute for meat. Their texture adds moisture and improves the mouthfeel and overall sensory appeal of dishes.
Mushrooms also offer nutritional benefits. They are cholesterol-free and contain small amounts of essential amino acids and B vitamins. They also contain ergothioneine, a compound with potential health benefits for humans.
While the standard "mushroom" is the cultivated white button mushroom, Agaricus bisporus, there are over 2000 varieties of edible mushrooms. Other common species include cremini, portabella, shiitake, straw, oyster, and enoki mushrooms.
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They have a unique nutrient profile, including vitamins and amino acids
Mushrooms have a unique nutritional profile, including vitamins, minerals, and amino acids. They are low in calories and fat, and contain modest amounts of fibre and protein.
Vitamin-wise, mushrooms are a good source of B vitamins, including thiamine, riboflavin, B6, and B12. They also contain vitamin D, which is rare for produce. Mushrooms exposed to ultraviolet light or sunlight can increase their vitamin D amounts. For example, white button, portabella, and cremini mushrooms provide the most vitamin D after such exposure.
Mushrooms are also a good source of potassium, which is known for reducing the negative impact of sodium on the body and lessening tension in blood vessels, potentially helping to lower blood pressure.
In terms of amino acids, mushrooms contain ergothioneine, a sulphur-containing amino acid with a unique transport system in mammals, suggesting it is important for human health. Ergothioneine cannot be synthesized by humans and is found in limited dietary sources, including fungi, kidney, liver, black and red beans, oat bran, and some bacteria.
Mushrooms also contain polysaccharides, their most abundant carbohydrate, which stimulate the growth of healthy bacteria in the gut.
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Mushrooms are biologically distinct from plant- and animal-derived foods
Mushrooms are distinct from plants and animals in that they are a type of fungus. They are neither plants nor animals, and belong to the kingdom fungi, which also includes yeasts, mildews, moulds, rusts, and smuts. While fungi were once considered plants, we now know that they are more closely related to animals, including humans.
Mushrooms are commonly identified by their umbrella-like shape, with a cap (pileus) and a stalk (stipe), and gills (lamellae) on the underside of the cap. They are typically produced above ground on soil or another food source. The gills produce microscopic spores, which help the fungus spread. The spores fall in a fine rain of powder from under the caps, aiding in the fungus' dispersal.
Mushrooms also have a unique taste, known as umami or savoury, which makes them a suitable substitute for meat. They are cholesterol-free and contain small amounts of essential amino acids and B vitamins. Their texture and flavour add a new taste dimension to dishes, while their high water content (about 90%) can reduce the energy density of meals.
Mushrooms are biologically distinct and play a significant role in our world, offering a range of medicinal and nutritional benefits. They are a fascinating and unique part of the ecosystem and are increasingly used in plant-based diets.
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They have a unique taste called umami
Mushrooms have a unique taste called umami. Umami is one of the five basic taste categories in food, along with sweet, sour, salty, and bitter. It was first discovered and defined in Japan in 1908 and loosely translates from Japanese to mean "delicious" or "savory." Umami is the flavour sensation that occurs when taste receptors on the tongue detect an amino acid called glutamate. The brain receives these signals, and you experience a deep, meaty, savoury taste.
Mushrooms are used by chefs and home cooks worldwide for their delicious and savoury flavour, or umami. They contain a lot of guanylic acid, a umami component. Shiitake mushrooms, Japan's most popular mushroom, have a strong, earthy smell and are used fresh or dried in cooking. When dried, their guanylate content increases, and the drying process allows concentration and provides glutamate, thus boosting their umami flavour. Fresh shiitake mushrooms are abundant in glutamate.
Common Mushrooms (Agaricus bisporus) originate in Europe and are the most cultivated fungus in the world. They have two colour states while immature—white and brown. White mushrooms are served raw or cooked, while brown mushrooms are usually cooked. Their umami substance is glutamate. Truffles are another type of fungus that is considered one of the world's top three delicacies. They are abundant in glutamate.
Mushrooms complement almost any meal, from appetizers and salads to main dishes and sides. They provide moisture, improving the mouthfeel and overall sensory appeal of dishes, while their low energy density (about 92% water) can reduce the energy density of the final dish when replacing other higher-energy-dense ingredients. Mushrooms are also cholesterol-free and contain small amounts of essential amino acids and B vitamins.
Mushrooms are biologically distinct from plant- and animal-derived foods, comprising the US Department of Agriculture food patterns. Although mushrooms provide nutrients found in these food groups, they have a unique nutrient profile. They are also a good source of ergothioneine, a sulphur-containing amino acid that cannot be synthesized by humans and is suggested to be important for human health.
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There are over 2000 varieties of edible mushrooms
Mushrooms are a type of fungus, and there are over 2000 varieties that are edible. Fungi are biologically distinct from plant- and animal-derived foods, and mushrooms have a unique nutrient profile. They are neither plants nor animals, but they are more closely related to animals, including humans, than to plants.
The term "mushroom" is typically used to refer to the cultivated white button mushroom, or Agaricus bisporus, which is the most commonly consumed mushroom worldwide. However, the word "mushroom" can also be used to describe a variety of other gilled fungi, with or without stems. Some mushrooms that fall outside the standard morphology have more specific names, such as "bolete", "truffle", "puffball", "stinkhorn", and morel.
Edible mushrooms are cholesterol-free and contain small amounts of essential amino acids and B vitamins. They are also a good source of ergothioneine, a compound with a unique transport system in mammals, suggesting it is important for human health. Mushrooms have a savoury or umami flavour, which makes them a suitable substitute for meat. They also have a high water content, at about 90%, which can reduce the energy density of dishes when used in place of other ingredients.
Some of the most familiar edible mushroom species to US consumers include shiitake (Lentinus edodes), straw (Volvariella volvacea), oyster (Pleurotus ostreatus), and enoki (Flammulina ostreatus). Other edible varieties include chanterelle, porcini, lion's mane, cremini, and portobello mushrooms, which are the mature form of the Agaricus bisporus species.
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Frequently asked questions
A mushroom is a fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or another food source.
Mushrooms are biologically distinct from plant- and animal-derived foods. They are fungi and belong to the kingdom fungi, along with yeasts, mildews, molds, rusts, and smuts.
Mushrooms have a unique taste called umami, which is a fifth primary taste along with sweet, salty, bitter, and sour.
Mushrooms contain ergothioneine, a compound that is important for human health and found in limited dietary sources. They are also cholesterol-free and contain small amounts of essential amino acids and B vitamins.
Some unique types of mushrooms include the white button mushroom, cremini, portobello, shiitake, straw, oyster, enoki, chanterelle, and morel.

























