
Used for thousands of years in traditional Chinese medicine, shiitake mushrooms have a rich, earthy flavour and a chewy texture. They are native to the mountain regions of Japan, Korea, and China and are now used around the world for food and supplements. But do they contain protein?
| Characteristics | Values |
|---|---|
| Protein | 9% of calories in a cup of shiitake mushrooms come from protein. They contain 17 amino acids, including all 9 essential ones, making them a complete protein. |
| Vitamins | Shiitake mushrooms are a source of vitamins B and D, zinc, choline, copper, selenium, and ergosterol (a precursor to vitamin D). |
| Minerals | Shiitake mushrooms are rich in minerals such as polysaccharides, terpenoids, sterols, lipids, beta-glucans, and fiber. They also contain magnesium, potassium, and natural sugar. |
| Health Benefits | Used in traditional Chinese medicine, shiitake mushrooms are believed to boost health and longevity and improve circulation. Studies suggest they may protect against cancer and inflammation, lower cholesterol and blood pressure, and boost heart health and immunity. |
| Allergens | Although rare, raw shiitake mushrooms can induce asthma and cause skin dermatitis due to the presence of the lentinan compound. Cooking the mushrooms can avoid this reaction. |
| Uses | Shiitake mushrooms are used as food and as supplements. They are popular in Asian cuisine and traditional medicine. |
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What You'll Learn

Shiitake mushrooms are a source of protein
Shiitake mushrooms (Lentinula edodes) are a source of protein. They are native to the mountain regions of Japan, Korea, and China, where they have been used for food and traditional medicine for thousands of years. In traditional Chinese medicine, shiitake are believed to boost health and longevity and improve circulation.
Shiitake mushrooms have a rich, earthy, and distinctive meaty taste and a chewy texture. They are low in calories and contain many vitamins, minerals, and other health-promoting compounds. One cup of shiitake mushrooms (145g) provides 81 calories, 9% of which come from protein. They contain all nine essential amino acids, making them a complete protein. The amino acid profile also includes glutamic acid, aspartic acid, and monosodium glutamate (MSG).
Shiitake mushrooms are also a good source of vitamin D, zinc, copper, selenium, and choline. They contain eritadenine, sterols, and beta-glucans, which help to lower cholesterol levels in the blood. Beta-glucans are also being used in Japan to stimulate the immune system during cancer treatment and protect against certain tumors. The mushrooms also contain lentinan, a type of beta-glucan that boosts the body's production of immune-regulating proteins called cytokines, which help fight off infections and diseases like cancer.
Shiitake mushrooms are typically used in Asian cuisine and can be cooked with fresh or dried. They are a healthy and sustainable food source that can be added to a variety of dishes, such as stir-fries and soups.
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They have all 9 essential amino acids
Shiitake mushrooms (Lentinula edodes) are a fantastic source of protein, containing all nine essential amino acids. This makes them a complete protein, which is rare for a plant-based food.
Amino acids are the building blocks of protein, and while our bodies can produce some of them, there are nine that we can only get from our diet. These essential amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Shiitake mushrooms contain all of these, making them a valuable protein source, especially for those following a plant-based diet.
In addition to their impressive amino acid profile, shiitake mushrooms also offer a range of other health benefits. They are a good source of vitamins and minerals, including B vitamins, vitamin D, zinc, copper, and selenium. These nutrients contribute to improved heart health, reduced inflammation, and a boosted immune system.
The beta-glucans found in shiitake mushrooms have been linked to improved cancer treatment outcomes, particularly in Japan, where they are used to stimulate the immune system during cancer treatment. Lentinan, a type of beta-glucan, increases the production of immune-regulating proteins called cytokines, which help the body fight infections and diseases like cancer.
Shiitake mushrooms also contain eritadenine and sterols, which work together to reduce cholesterol levels. By inhibiting the production of cholesterol and blocking its absorption in the gut, these compounds may help lower the risk of heart disease.
With their rich nutritional profile, shiitake mushrooms are a valuable addition to any diet, offering a complete protein source and a host of other health benefits.
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They are also rich in vitamins and minerals
In addition to being a source of protein, shiitake mushrooms are also rich in vitamins and minerals. They are an excellent source of vitamin B, vitamin D, zinc, and copper. One cup of shiitake mushrooms (145g) provides 81 calories, 2.3g of protein, 21g of carbohydrates, and only 0.3g of fat.
Vitamin B is a group of eight related vitamins, all of which are present in shiitake mushrooms. These vitamins are essential for maintaining healthy skin, hair, eyes, and livers, as well as boosting the metabolism.
Vitamin D is important for maintaining bone health and strengthening the immune system. It also helps to regulate mood and improve brain function.
Zinc is a mineral that plays an important role in the body's growth and development. It helps to maintain a healthy immune system, improve wound healing, and support the senses of taste and smell.
Copper is a mineral that supports healthy blood vessels, bones, and immune function. It also helps to maintain nerve health and is involved in energy production.
In addition to these key vitamins and minerals, shiitake mushrooms also contain smaller amounts of other nutrients, including selenium, choline, magnesium, potassium, and polysaccharides. These compounds provide additional health benefits, such as improved heart health, reduced inflammation, and boosted immunity.
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They are low in calories and fat
Shiitake mushrooms are native to the mountain regions of Japan, Korea, and China, where they have been used for food and traditional medicine for thousands of years. They are now used around the world for food and supplements.
Shiitake mushrooms are low in calories and fat. One cup of shiitake mushrooms (145g) provides 81 calories, 88% of which come from carbohydrates, 9% from protein, and 3% from fat. They are also a good source of B vitamins, vitamin D, zinc, copper, and selenium.
The mushrooms are also high in fiber, which can help to lower cholesterol and improve heart health. They contain eritadenine, a compound that inhibits the production of cholesterol, and beta-glucans, a type of fiber that can lower cholesterol and reduce inflammation.
Shiitake mushrooms are also a good source of plant-based nutrients that can be hard to get from other sources, such as vitamin D, zinc, and choline. They are also a complete protein, containing all nine essential amino acids.
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They have been used in traditional medicine
Shiitake mushrooms are not only a delicious addition to meals but also pack a nutritional punch. And when it comes to protein content, they indeed contain a decent amount. With about 18 grams of protein per 100 grams of shiitake mushrooms, they offer a good option for those looking to boost their protein intake, especially if you're following a plant-based diet.
Now, on to their role in traditional medicine:
Shiitake mushrooms have a long history of use in traditional medicine, particularly in East Asian cultures. They have been revered for their therapeutic properties and have been an integral part of the medicinal practices of China, Japan, and other Asian countries for centuries. The active compounds present in shiitake mushrooms, including polysaccharides, sterols, and glycoproteins, are believed to contribute to their medicinal value.
In traditional Chinese medicine, shiitake mushrooms are believed to boost Qi, or life energy, and enhance the immune system. They are considered to have cooling properties, which help counteract inflammation and promote healing. Shiitake has been used to treat a variety of ailments, including digestive issues, poor circulation, and respiratory problems. The mushrooms were often prepared in soups and tonics, believed to be an effective way to extract and concentrate their medicinal properties.
Japanese traditional medicine, known as Kampo, also recognizes the value of shiitake mushrooms. In Kampo, shiitake is believed to support the liver and promote healthy blood circulation. Additionally, the mushroom's ability to stimulate the immune system and its potential anti-tumor properties have been of particular interest in modern research, with numerous studies exploring shiitake's potential in cancer treatment and prevention.
The active compounds in shiitake mushrooms are thought to provide a range of benefits, including antiviral, antibacterial, and anti-inflammatory effects. A compound called lentinan, a type of polysaccharide, is of particular interest for its potential immune-boosting and anti-cancer properties. Lentinan has been studied for its ability to stimulate the production of immune cells and enhance the body's defense mechanisms against foreign invaders and abnormal cell growth.
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Frequently asked questions
Yes, shiitake mushrooms contain protein. A cup of shiitake mushrooms (145g) provides 2.3g of protein.
While protein is essential for a healthy diet, there is such a thing as too much protein. The recommended daily intake varies depending on age, sex, and activity level. Generally, the recommended daily protein intake is 46 grams for women and 56 grams for men.
Shiitake mushrooms are low in calories and rich in B vitamins, vitamin D, zinc, copper, and selenium. They are also a good source of fiber. Shiitake mushrooms have been used in traditional Chinese medicine and are believed to boost health and longevity and improve circulation. Studies suggest that some of the bioactive compounds in shiitake may protect against cancer and inflammation.
Shiitake mushrooms can be used in a variety of dishes, such as stir-fries, soups, and noodle dishes. They can be cooked or added to dishes dried.

























