
Mushrooms are a nutritional powerhouse, packed with protein, vitamins, minerals, and antioxidants. They are a good source of protein, especially for those following a vegetarian or vegan lifestyle, although the quantity is lower compared to meat and other sources. The protein found in mushrooms, also known as mycoprotein, is of high quality and easily digestible. While all edible mushrooms contain protein, oyster mushrooms have the highest protein content among common edible mushrooms, with about 3 grams of protein per cup. White mushrooms are the most protein-dense on a per-calorie basis.
| Characteristics | Values |
|---|---|
| Types of mushrooms with high protein | Oyster, Lion's Mane, White, Shiitake, Portobello |
| Protein content in Oyster mushrooms | 3-4g of protein per 100g fresh |
| Protein content in White mushrooms | Highest protein-dense mushrooms on a per-calorie basis |
| Protein content in Portobello mushrooms | 2-2.5g per 100g |
| Protein content in a cup of mushrooms | 2.2g of protein |
| Protein content in a cup of Oyster mushrooms | 3g of protein |
| Other nutrients | Vitamins, minerals, fibre, antioxidants, amino acids |
| Mushroom protein qualities | High bioavailability, easily digestible, high-quality, low cost, widely available, sustainable |
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What You'll Learn
- Oyster mushrooms have the highest protein content among common edible mushrooms
- White mushrooms are the most protein-dense on a per-calorie basis
- Mushrooms are a complete protein source with all nine essential amino acids
- Mushroom supplements are a convenient way to add protein to your diet
- Portobello mushrooms are a good meat substitute but have lower protein content

Oyster mushrooms have the highest protein content among common edible mushrooms
Oyster mushrooms are a variety of edible mushrooms that offer a range of nutritional benefits. They are particularly notable for their high protein content, making them a valuable food source, especially for those following a plant-based diet.
On average, 100 grams of fresh mushrooms contain around 2.9 grams of protein. In comparison, oyster mushrooms contain approximately 3-4 grams of protein per 100 grams, which is almost triple the amount found in spinach and nearly double that of broccoli. This makes oyster mushrooms a good source of plant-based protein, providing an alternative to animal-based proteins like chicken breast, which has a much higher protein content of 32.1 grams per 100 grams.
The protein found in oyster mushrooms is of high quality, containing all nine essential amino acids required for human nutrition. This makes oyster mushrooms a complete protein source, similar to animal-based sources like egg whites. The amino acid content in oyster mushrooms surpasses that of plant-based foods like wheat and soybeans, making them an excellent option for vegetarians and those seeking alternative protein sources.
In addition to their high protein content, oyster mushrooms offer other health benefits. They are a good source of fiber, vitamins, minerals, and antioxidants, which help reduce cellular damage in the body. Studies have shown that oyster mushrooms may improve blood sugar levels and support the immune system, exhibiting antiviral and antibacterial effects.
Overall, oyster mushrooms are a nutritious food choice with the highest protein content among common edible mushrooms, making them a valuable addition to a balanced diet.
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White mushrooms are the most protein-dense on a per-calorie basis
Mushrooms are a great source of protein, especially for those following a plant-based diet. While the amount of protein varies across different types of mushrooms, white mushrooms are the most protein-dense on a per-calorie basis. This means that for the amount of calories they contain, white mushrooms provide a higher proportion of protein compared to other mushrooms.
White mushrooms, also known as table mushrooms or button mushrooms, are commonly found in homes and restaurants worldwide due to their versatility and culinary capabilities. They are a good source of protein and offer a range of other nutritional benefits, making them a valuable addition to any diet.
The protein found in white mushrooms, and mushrooms more broadly, is known as mycoprotein. Mycoprotein is of high quality and easily digestible, making mushrooms an excellent protein source, especially for vegetarians and vegans. The digestibility of mushroom protein is influenced by various factors, including the presence of anti-nutritional factors such as phenolics, phytates, tannins, trypsin inhibitors, and hemagglutinins. However, the content of these anti-nutritional factors in mushrooms is below the WHO toxicity level and poses no risk to humans.
In addition to protein, white mushrooms provide essential vitamins and minerals, including vitamin D, selenium, potassium, thiamin, riboflavin, and niacin. Vitamin D is abundantly found in mushrooms due to their ability to produce it when exposed to UV light. Adding white mushrooms to your diet can support healthy bones and boost your overall nutrition.
While white mushrooms offer a good amount of protein, it is important to note that the quantity of protein in mushrooms is generally lower compared to meat and some other sources. Therefore, while mushrooms can be a valuable part of a balanced diet, they should not be relied upon as the sole source of protein. Instead, it is recommended to vary your protein sources to ensure you are meeting your daily protein needs.
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Mushrooms are a complete protein source with all nine essential amino acids
Mushrooms are a nutritional powerhouse, packed with protein, fibre, vitamins, minerals, and antioxidants. They are an excellent source of plant-based protein, especially for vegetarians and vegans, as they contain all nine essential amino acids required for human nutrition.
The protein in mushrooms, also known as mycoprotein, is of high quality and easily digestible. The digestibility of mushroom protein is comparable to that of animal-based proteins, with a Biological Value (BV) score of 80, similar to milk (100) and meat (80–85), and higher than cereals and legumes. This makes mushrooms an excellent alternative protein source, especially for those looking to reduce their intake of animal products.
While the quantity of protein in mushrooms is generally lower than in meat, certain varieties boast impressive protein content. Oyster mushrooms, for instance, contain 3-4 grams of protein per 100 grams fresh, outperforming many plant-based sources and even some animal-based proteins. White mushrooms are the most protein-dense on a per-calorie basis, while Chanterelle mushrooms have the highest fibre content per weight.
Mushrooms also offer a wide range of health benefits beyond their protein content. They are a good source of Vitamin D, B vitamins, selenium, and potassium. Additionally, studies have shown that mushroom proteins have antioxidant, antimicrobial, anticancer, and antiviral properties. Incorporating mushrooms into your diet can support healthy bones, boost immune function, and provide a significant nutritional boost.
However, it is important to note that mushrooms should not be the sole source of protein in your diet. While they are a complete protein, the recommended daily protein intake would require consuming a large portion of mushrooms. It is advisable to include other protein sources in your diet alongside mushrooms to ensure a balanced and nutritious approach to your health and fitness goals.
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Mushroom supplements are a convenient way to add protein to your diet
Mushrooms are a nutritional powerhouse, packed with protein, fibre, vitamins, minerals, and antioxidants. They are a great way to add protein to your diet, especially for those following a vegetarian or vegan lifestyle. While the amount of protein varies across different types of mushrooms, they are a good source of complete protein, meaning they contain all the essential amino acids required for human nutrition.
Oyster mushrooms, for instance, are known for their high protein content, offering 3-4 grams of protein per 100 grams, which is almost double that of broccoli. White mushrooms, on the other hand, are the most protein-dense on a per-calorie basis. Other varieties such as shiitake, portobello, and lion's mane mushrooms are also recommended for their protein content and versatility in cooking.
Mushrooms can be incorporated into various dishes to boost their nutritional value. However, it is important to note that the protein content in mushrooms is generally lower than in meat and some other sources. Therefore, while they are a valuable addition to your diet, it is best to vary your protein sources to ensure you meet your daily requirements.
This is where mushroom supplements come in. They offer a convenient way to add the health benefits and nutritional content of mushrooms to your diet without having to consume large quantities. Mushroom supplements are available in capsules and powders, which can be easily added to soups, smoothies, sauces, or even coffee. These supplements are typically made from the fruiting bodies of organic mushrooms and provide an efficient way to increase your protein intake, especially if you are looking for plant-based alternatives.
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Portobello mushrooms are a good meat substitute but have lower protein content
Portobello mushrooms are a popular meat substitute due to their dense, firm texture and juicy, meaty flavour. They are nutrient-dense, low in calories, and rich in B vitamins like niacin and riboflavin. However, contrary to common belief, they are not a significant source of protein. While they do contain a small amount of plant-based protein, it is not comparable to that of tofu or tempeh.
Portobellos are a variety of cremini mushrooms and belong to the Agaricus bisporus species. They are mature, fully grown cremini mushrooms, which are allowed to grow to their maximum size. This makes them larger and firmer than creminis, with a darker colour and a more intense flavour. Their dense texture and savoury taste make them a popular choice for vegetarian and vegan dishes, such as burgers, steaks, and tacos.
While Portobello mushrooms are a tasty and healthy option for meat substitutes, their protein content is relatively low. On average, 100 grams of fresh mushrooms contain only 2.9 grams of protein. This is significantly less than animal-based proteins like chicken breast, which has 32.1 grams of protein per 100 grams.
To compensate for the lower protein content, Portobello mushrooms are often paired with other plant-based proteins in recipes. For example, they can be stuffed with tofu or served with beans and lentils, to boost the overall protein content of the dish. Additionally, mushrooms are a complete protein source, providing all nine essential amino acids needed for human nutrition. They also have a high bioavailability, which means the body can utilise their protein more efficiently for tissue growth, repair, and maintenance.
In conclusion, while Portobello mushrooms may not be a significant source of protein, they are still a nutritious and tasty option for meat substitutes. Their dense texture, savoury flavour, and nutritional benefits make them a popular choice for those seeking plant-based alternatives. By combining them with other protein sources and including them in a balanced diet, individuals can still ensure they are meeting their protein requirements while enjoying the benefits of these versatile fungi.
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Frequently asked questions
Oyster mushrooms have the highest protein content among common edible mushrooms, with about 3 grams of protein per cup.
Yes, white mushrooms are the most protein-dense on a per-calorie basis. Lion's mane, shiitake, and portobello mushrooms are also good sources of protein.
The protein in mushrooms, also known as mycoprotein, is of high quality and easily digestible, making it an excellent alternative to animal-based proteins. However, the quantity of protein in mushrooms is lower compared to meat and other sources.
Mushrooms are a good source of essential vitamins, minerals, fibre, and antioxidants. They are also low in calories and can be used as a meat substitute in various dishes.
As a standard guideline, it is recommended to consume 0.8 grams of protein per kilogram of body weight. However, it is best to vary your protein sources to ensure you are getting enough protein daily.

























