
Mushrooms are a unique source of vitamin D, which is typically derived from sunlight. They are also one of the few non-animal sources of this vitamin. Mushrooms contain ergosterol, a substance that can be converted into vitamin D2 when exposed to ultraviolet light. The amount of vitamin D in mushrooms depends on their exposure to UV light. Mushrooms are also a source of B vitamins, including riboflavin, niacin, and pantothenic acid, as well as minerals like selenium, copper, and potassium. Certain varieties, such as lion's mane and reishi, are considered medicinal and may offer additional health benefits.
| Characteristics | Values |
|---|---|
| Vitamins | Vitamin D2, Vitamin B12, Vitamin C, Riboflavin, Niacin, Pantothenic Acid |
| Minerals | Selenium, Copper, Potassium |
| Other | Ergosterol, Ergothioneine, Beta-glucans, Polysaccharides, Polyphenols, Flavonoids, Phenolic Acids, Glutathione |
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What You'll Learn

Mushrooms are a source of vitamin D
The amount of vitamin D in mushrooms varies depending on their exposure to UV light. Wild mushrooms like chanterelles and morels can contain up to 1200 IU of vitamin D per 3.5-ounce serving, while mushrooms grown in dark conditions, such as white button, shiitake, and oyster mushrooms, contain less than 40 IU. However, exposing button mushrooms to sunlight can increase their vitamin D content to up to 400 IU per 3.5-ounce serving.
Mushrooms are also a good source of vitamin D for vegans and vegetarians, as vitamin D is commonly found in animal-based foods such as egg yolks and oily fish. Consuming mushrooms can help boost vitamin D levels, especially during winter when sunlight exposure is limited. Additionally, mushrooms provide nutritional benefits similar to those found in vegetables, meat, beans, and grains. They are low in calories, fat-free, cholesterol-free, and high in protein.
Some varieties of mushrooms, such as shiitake, oyster, and split gill, contain beta-glucans, which have immunity-stimulating effects and contribute to resistance against allergies. They may also participate in physiological processes related to the metabolism of fats and sugars in the human body. Mushrooms also contain B vitamins, including riboflavin, niacin, and pantothenic acid, which play important roles in energy production, hormone production, and nervous system function.
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They contain B vitamins
Mushrooms are a good source of B vitamins, including riboflavin, niacin, and pantothenic acid. B vitamins are essential for energy production and metabolism. For example, riboflavin plays a role in how our bodies metabolize fat, while niacin helps with the metabolism of macronutrients like proteins, carbohydrates, and fats. Pantothenic acid aids in hormone production and supports the nervous system.
Including mushrooms in your diet can be a good way to boost your B vitamin intake. For instance, a 100-gram serving of white button mushrooms provides almost a quarter of the daily riboflavin requirement, 23% of the daily niacin need, and 30% of the daily pantothenic acid requirement. Women, in particular, may be deficient in B vitamins, so adding mushrooms to meals can be a great way to increase intake.
White mushrooms, for example, are a good source of vitamin B12, which is usually obtained from animal sources. This makes them a beneficial addition to plant-based diets. They also contain a higher protein content than most vegetables, making them a nutritious option for those following a vegetarian or vegan diet.
In addition to their B vitamin content, mushrooms also offer other nutritional benefits. They are a good source of vitamin D, especially when exposed to ultraviolet (UV) radiation from sunlight or a UV lamp. Vitamin D helps maintain strong bones by aiding the body in absorbing calcium. Mushrooms are also a source of antioxidants, including selenium, ergothioneine, and glutathione, which protect the body's cells from damage and may offer anticancer and anti-inflammatory properties.
Overall, mushrooms are a nutritious food that provides various health benefits, including a good source of B vitamins.
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Mushrooms have medicinal properties
Mushrooms have been used for their medicinal properties for centuries. They are a rich source of plant-based vitamin D2, which is effective in raising blood levels of vitamin D, aiding in calcium absorption, and maintaining strong bones. Vitamin D deficiency is a concern for public health, and mushrooms are a valuable dietary source of this nutrient.
Mushrooms also contain B vitamins, including riboflavin, niacin, and pantothenic acid, which play essential roles in energy production, metabolism, hormone production, and nervous system function. Additionally, mushrooms are a source of vitamin B12, usually obtained from animal sources, making them a beneficial addition to plant-based diets.
The presence of beta-glucans in mushrooms, particularly oyster, shiitake, and split gill varieties, provides immunity-stimulating effects. These beta-glucans contribute to resistance against allergies and may influence the metabolism of fats and sugars. Furthermore, mushrooms deliver the antioxidants selenium, ergothioneine, and glutathione, which protect body cells from damage, combat oxidative stress, and reduce the risk of heart disease and certain cancers.
Certain varieties of mushrooms, such as lion's mane and reishi, are referred to as 'medicinal' due to their perceived healing properties. These mushrooms are often consumed as supplements rather than whole and have been linked to potential benefits in treating neurodegenerative diseases and lowering cholesterol levels. The compounds in mushrooms, including beta-glucans, act as prebiotics, promoting the growth of beneficial gut bacteria and supporting overall gut health.
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They are rich in antioxidants
Mushrooms are rich in antioxidants, which help maintain a healthy immune system and protect body cells from damage that might lead to chronic diseases. Selenium, an antioxidant found in mushrooms, works to protect body cells from damage that could lead to heart disease, some cancers, and other diseases associated with ageing. Selenium is also important for the immune system and male fertility.
Mushrooms also contain ergothioneine, a naturally occurring antioxidant that may help protect the body's cells. This antioxidant, along with glutathione, is believed to be behind mushrooms' potential cancer-fighting properties. These antioxidants help combat the harmful effects of oxidative stress, which leads to cellular damage that can accelerate ageing and increase the risk of developing heart disease and certain cancers.
The beta-glucans in mushrooms also have immunity-stimulating effects, contributing to resistance against allergies and participating in physiological processes related to the metabolism of fats and sugars in the human body. The beta-glucans contained in oyster, shiitake, and split gill mushrooms are considered to be the most effective.
Mushrooms are also a source of vitamin C, which acts as an antioxidant and offers anticancer properties that enhance the immune system's production of protective cells, including natural killer cells, which help defend against cancer development.
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Mushrooms are a good source of selenium
Mushrooms are a unique source of vitamin D, especially for those following a plant-based diet. They are one of the few non-animal sources of vitamin D, and their exposure to UV rays or sunlight increases their concentration of vitamin D. Mushrooms contain ergosterol, a substance similar to cholesterol in animals, which can be transformed into vitamin D with exposure to ultraviolet light. Vitamin D helps build and maintain strong bones by aiding the body in absorbing calcium. It also plays a role in maintaining a healthy weight and reducing the risk of certain cancers.
In addition to selenium and vitamin D, mushrooms provide many other nutritional benefits. They are a good source of B vitamins, including riboflavin, niacin, and pantothenic acid, which are essential for energy production, metabolism, hormone production, and nervous system function. Mushrooms also contain beta-glucans, which have immunity-stimulating effects and contribute to resistance against allergies. The beta-glucans in oyster, shiitake, and split gill mushrooms are considered to be the most effective.
Mushrooms are low in calories and sugar while being high in protein, making them a filling and satisfying food choice for weight management. They also contain multiple antioxidant compounds, including polyphenols, polysaccharides, ergothioneine, glutathione, vitamin C, and selenium, which contribute to their potential cancer-fighting properties. The antioxidant properties of selenium and vitamin C help protect the body's cells from damage and enhance the immune system's production of protective cells, including natural killer cells, which defend against cancer development.
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Frequently asked questions
Mushrooms are a source of vitamin D2, vitamin B12, riboflavin, niacin, pantothenic acid, selenium, copper, potassium, and ergothioneine.
The amount of vitamin D in mushrooms varies depending on how long they are exposed to UV light. Fresh wild mushrooms like chanterelles and morels can contain up to 1200 IU of vitamin D per 3.5-ounce serving, while mushrooms grown in dark conditions contain less than 40 IU.
Vitamin D helps build and maintain strong bones by aiding the body in absorbing calcium. Vitamin D deficiency can lead to osteoporosis, mineralization defects, and muscle weakness. Vitamin B12 is important for energy production and metabolism. Riboflavin helps with hormone production and the nervous system. Niacin helps metabolize macronutrients. Pantothenic acid promotes healthy skin and aids the digestive and nervous systems. Selenium is an antioxidant that protects against heart disease, cancer, and other diseases of aging. Copper helps make red blood cells. Potassium aids in maintaining normal fluid and mineral balance. Ergothioneine protects DNA from oxidative damage.

























