
Portabella mushrooms are one of the most widely consumed mushrooms in the world, and are known for their meaty and savoury taste. They are low in fat and calories, and are a good source of nutrients such as polysaccharides, polyphenols, and carotenoids, which have potential anti-inflammatory, antioxidant, and anticancer properties. They are also a good source of vitamin D, especially if exposed to ultraviolet light during cultivation. With 0.40 milligrams of iron per 100 grams, they are not the best source of iron, but they can still play an important role in iron metabolism. For example, their vitamin C content helps with the absorption of iron from other foods in a meal.
| Characteristics | Values |
|---|---|
| Iron content | 0.40 milligrams per 100 grams |
| Vitamin C content | Low source |
| Fat content | Low |
| Calorie content | Low (22 calories per 100 grams) |
| Nutrient content | High in B vitamins, including niacin (vitamin B3) and riboflavin (vitamin B2); non-nutritive compounds like polysaccharides, polyphenols, and carotenoids; protein |
| Health benefits | May have anti-inflammatory, antioxidant, and anticancer properties; may improve immune function; may be a good substitute for foods higher in fat and calories |
| Culinary uses | Can be cooked in a variety of ways, including grilling, marinating, and stir-frying; popular in Italian dishes, veggie burgers, and fajitas |
| Storage | Should be stored refrigerated in their original container or a paper bag; should be eaten as soon as possible |
| Cleaning | Should be cleaned under running water immediately before cooking and eating; should not be pre-washed |
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What You'll Learn

Portabella mushrooms contain 0.40 milligrams of iron per 100 grams
Portabella mushrooms are a type of mushroom that is widely consumed around the world. They are known for their versatility and can be cooked in a variety of ways, including grilling, pan-frying, and stir-frying. They are often used as a substitute for meat in vegetarian and vegan dishes due to their meaty and savoury taste and texture.
Portabella mushrooms are a good source of nutrients and contain non-nutritive compounds such as polysaccharides, polyphenols, and carotenoids, which may have anti-inflammatory, antioxidant, and anticancer properties. Polysaccharides in mushrooms also act as food for beneficial gut bacteria, which may improve immune function. Additionally, mushrooms are one of the best dietary sources of L-ergothioneine (ERGO), a very stable antioxidant that may help protect against neurodegenerative diseases.
While portabella mushrooms do contain iron, there are other types of mushrooms that provide higher levels of iron, such as oyster mushrooms. It is important to note that mushrooms are not a significant source of vitamin D, even though they are the only known non-animal source of this vitamin. Commercially grown mushrooms are often cultivated in dark indoor spaces, so they do not contain high amounts of vitamin D. However, some growers expose their mushrooms to ultraviolet (UV) light to increase their vitamin D content.
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They are low in vitamin C, which helps iron absorption
Portabella mushrooms contain 0.4 milligrams of iron per 100 grams. While they are a good source of iron compared to other vegetables, they are low in vitamin C, which aids in iron absorption.
Vitamin C helps the body absorb iron better. Vegetables are often rich in vitamin C, but portabella mushrooms are not. To improve the absorption of iron in a meal containing portabella mushrooms, it is recommended to include foods rich in vitamin C, such as tomatoes, green peppers, or a glass of fruit juice.
Portabella mushrooms are a type of mushroom that is widely consumed worldwide. They are known for their meaty and savoury taste, making them a popular substitute for meat and cheese in various dishes, including pasta, sauces, burgers, and stir-fries. Despite their popularity, they are not considered a significant source of vitamin C.
While portabella mushrooms may not provide a substantial amount of vitamin C, they offer other nutritional benefits. They are low in fat and calories, and they contain non-nutritive compounds like polysaccharides, polyphenols, and carotenoids, which may possess anti-inflammatory, antioxidant, and anticancer properties. Additionally, the polysaccharides in portabella mushrooms can act as food for beneficial gut bacteria, potentially improving immune function.
It is worth noting that while portabella mushrooms provide some iron, other types of mushrooms, such as oyster mushrooms, may offer higher iron levels and additional health benefits. However, when compared to other vegetables, portabella mushrooms still stand out as a good source of iron.
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Oyster mushrooms contain more iron
Portabella mushrooms are a type of fungi that have gained popularity due to their health benefits and versatility in cooking. They are a good source of nutrients and contain 0.40 milligrams of iron per 100 grams. While they are low in fat and calories, portabella mushrooms are not a significant source of vitamin D unless exposed to ultraviolet (UV) light during cultivation.
Oyster mushrooms, on the other hand, are a common edible mushroom variety with a unique shape and color similar to oysters, as their name suggests. They offer a range of impressive health benefits and contain a higher concentration of iron compared to portabella mushrooms. Oyster mushrooms are an excellent source of dietary fiber, beta-glucan, niacin, riboflavin, and pantothenic acid. They are also rich in protein, vitamins, and minerals, providing numerous antioxidants that help reduce cellular damage and promote overall health.
Test-tube, animal, and preliminary human studies suggest that oyster mushrooms have potential anti-tumor and cancer-fighting properties. For example, a 2012 study showed that oyster mushroom extract might suppress breast cancer and colon cancer growth in human cells. Additionally, oyster mushrooms may improve immune health and possess anti-inflammatory properties. A 2021 rodent study found that obese rats fed a diet supplemented with oyster mushrooms experienced decreased pathogenic bacterial growth and increased beneficial short-chain fatty acid production in their guts.
Oyster mushrooms are a flavorful and nutritious addition to various savory dishes. They have a delicate taste and a firmer texture compared to other mushroom varieties, making them a versatile ingredient in many recipes. With approximately 40 species, including golden, pink, Phoenix, and blue oyster mushrooms, each variety offers its own unique flavor profile. Oyster mushrooms can be found year-round in grocery stores, but it is important to select dry, firm clusters for the best quality.
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Portabellas are a good source of protein and B vitamins
Portabella mushrooms are a good source of protein and B vitamins, offering a range of health benefits. They are low in fat and calories, with 100 grams of raw mushrooms containing no fat and only 22 calories. This makes them an excellent substitute for foods higher in fat and calories, such as meat and cheese.
Portabellas are a good source of protein, with most types of mushrooms containing about 20% protein based on their dried weight or mass. This makes them a great option for those following a vegetarian or vegan diet, as they can mimic the texture and mouthfeel of meat. Additionally, they are easy to digest, making them a more appealing alternative to processed tofu, frozen veggie burgers, or legumes, which can sometimes be challenging to digest.
When it comes to B vitamins, portabella mushrooms are exceptionally rich in this department, especially considering they are a vegetable. They contain high levels of niacin (vitamin B3) and riboflavin (vitamin B2). B vitamins are essential for several bodily functions, including energy metabolism, nerve health, and the production of red blood cells.
While portabella mushrooms may not be the highest in iron compared to other mushrooms, they still contain a small amount, with 0.40 milligrams of iron per 100 grams. Additionally, they contain non-nutritive compounds like polysaccharides, which act as food for beneficial gut bacteria, promoting the growth of strains that boost immunity. The polysaccharides in portabellas may also have anti-inflammatory, antioxidant, and anticancer properties, showcasing the mushroom's potential therapeutic effects.
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Polysaccharides in portabellas may improve immune function
Portabella mushrooms are a good source of many nutrients. They are low in fat and calories, making them a suitable substitute for foods higher in fat and calories, such as meat and cheese. Portabella mushrooms also contain non-nutritive compounds like polysaccharides, polyphenols, and carotenoids, which may have anti-inflammatory, antioxidant, and anticancer properties.
Polysaccharides in portabella mushrooms act as food for beneficial gut bacteria, aiding their growth and survival. This is important because approximately 70% of the immune system is located in the gut. By promoting the growth of beneficial gut bacteria, polysaccharides may help improve immune function.
Plant polysaccharides can increase the number and diversity of beneficial bacteria in the gut, leading to the production of various active substances, including short-chain fatty acids (SCFAs). These gut microbes and their metabolites have anti-inflammatory effects, enhance the intestinal barrier, and activate and regulate immune cells, all of which contribute to improved immunity.
Additionally, polysaccharides can act as an activator of the immune system, reducing damage caused by infectious agents. They are considered prebiotics, which cannot be digested and absorbed by the host but selectively promote the metabolism and proliferation of beneficial bacteria in the intestine, thereby improving the host's overall health.
The potential benefits of polysaccharides in modulating the immune system have been explored in the context of COVID-19 therapy. Research suggests that improving intestinal health through the intake of dietary polysaccharides may provide a unique approach to treating or improving COVID-19 outcomes.
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Frequently asked questions
Portabella mushrooms contain 0.40 milligrams of iron per 100 grams, which is considered a low source of iron.
The recommended daily intake of iron varies depending on age, gender, and health status. It's always best to consult a doctor or a dietician for personalized advice.
Yes, oyster mushrooms are known to provide higher levels of iron and are often recommended for preventing anemia and other iron-deficiency related conditions.
Vegetables that contain iron often have compounds that inhibit iron absorption. However, including vitamin C-rich foods like tomatoes, green peppers, or a glass of fruit juice with your meal can help improve iron absorption.
Portabella mushrooms are low in fat and calories, high in protein for a non-meat source, and a good source of B vitamins. They also contain polysaccharides, which act as food for beneficial gut bacteria and may improve immune function. Additionally, they are versatile in cooking and can be used as a meat substitute.
























