
Mushrooms are a tasty and versatile ingredient used in various dishes worldwide. They are often used as a meat substitute and are known for their umami flavour. Given their popularity, it is no surprise that people following specific diets, such as Whole30, are curious about whether mushrooms are permitted. Whole30 is a popular diet that emphasizes whole, unprocessed foods and eliminates certain food groups for a set period. So, are mushrooms allowed on Whole30?
| Characteristics | Values |
|---|---|
| Are mushrooms allowed on Whole30? | Yes |
| Are all varieties of mushrooms allowed on Whole30? | Yes |
| Are mushrooms vegetables? | Yes |
| Can mushrooms be used as bun substitutes? | Yes |
| Are there any Whole30 mushroom recipes? | Yes, there are recipes for Whole30 mushroom chicken thighs, Whole30 keto sauteed mushrooms, and balsamic garlic roasted mushrooms |
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What You'll Learn

Mushrooms are allowed on Whole30
There are several Whole30-compliant mushroom recipes, including balsamic garlic roasted mushrooms, which are a perfect side dish for the holidays, catering to many dietary needs. They are simple and easy to make, and the end result is visually appealing and flavorful.
Another recipe is creamy Whole30 bacon mushroom chicken thighs, which are coated in a creamy sauce with salty, crispy bacon, earthy mushrooms, and fresh thyme. This recipe is easy enough for a quick weeknight dinner but elegant enough for nights when you have company.
Mushrooms can also be sautéed in a cast-iron skillet to make a paleo, low-carb, gluten-free, grain-free, dairy-free, sugar-free, and clean-eating dish.
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Portobello mushrooms can be used as bun substitutes
Portobello mushrooms are a mature form of cremini mushrooms, coming in the size and shape of hamburger buns. They can be used as a healthy alternative to bread buns, especially for those who are gluten-free, paleo, or keto eaters. The meaty texture of Portobello mushrooms ensures that they won't fall apart, and their mild, earthy flavour pairs well with a variety of fillings.
To prepare Portobello mushroom buns, start by preheating your oven to 425-450 degrees Fahrenheit. Gently clean the mushrooms with a paper towel or rinse them gently under cold running water, gill-side down. Remove the stems and set them aside for later use, such as in a vegetable stock. The gills of the mushrooms are edible but can be fibrous, so you may want to remove them with a spoon or your hand.
Before cooking, brush the mushrooms with olive oil or vegetable oil, and season with salt and pepper to taste. You can also add other seasonings or fresh herbs. Place the mushrooms, cap-side down, on a baking sheet lined with aluminium foil or parchment paper. Roast them in the oven for 10-15 minutes, until they are tender and lightly browned.
Once cooked, you can use Portobello mushroom buns for a variety of sandwiches and burgers. They pair well with beef, turkey, or veggie burger patties and can be topped with lettuce, tomato, onions, pickles, avocado, and your favourite sauce. Portobello mushroom buns can also be used for breakfast sandwiches with sausage and fried eggs.
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Mushrooms are versatile and can be cooked in many ways
Mushrooms are allowed on the Whole30 program, and they are versatile and can be cooked in many ways. Here are some tips and recipes to get you started:
Sautéed Mushrooms
Sautéed mushrooms are a popular and easy way to cook mushrooms. Start by removing any hard stems and cutting or tearing your mushrooms into similarly sized pieces. Wipe the mushrooms with a damp paper towel or quickly rinse them and pat them dry. Use a wide, heavy-bottomed pan to avoid overcrowding the mushrooms, as this will cause them to steam instead of sauté. Heat some olive oil and butter in the pan over medium heat, then add the mushrooms in a single layer. Allow them to cook without stirring for 4-5 minutes until they brown on one side. Add wine or other liquids like Worcestershire sauce, soy sauce, or balsamic vinegar if desired, and let it evaporate. Add aromatics like garlic, thyme, and pepper, and continue cooking for another 3-4 minutes, stirring occasionally, until the mushrooms are tender and golden brown. Season with salt at the end, as salting too early can prevent browning. Sautéed mushrooms are a great topping for steak, burgers, or baked potatoes, and they can also be added to soups, stews, casseroles, pasta sauce, or omelets.
Other Cooking Methods
Mushrooms can also be roasted, braised, or fried. When cooking mushrooms, it is important not to crowd the pan, as this will cause them to steam and simmer in their juices instead of browning and caramelizing. Additionally, make sure your pan is hot enough to get a good sear on the mushrooms and bring out their flavor. You can also experiment with different types of salt, such as truffle or porcini salt, to enhance the mushroom flavor. Mushrooms are very beginner-friendly and are hard to overcook or burn, so feel free to experiment with different cooking methods and ingredients!
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Mushrooms are vegetables, not fruits
Mushrooms are allowed on the Whole30 diet. They are vegetables and, therefore, compliant with the Whole30 program. They are great in stir-fries, soups, and other dishes. Portobello mushrooms can be used as bun substitutes, serving as a kind of Whole30 sandwich bread.
However, it is worth noting that mushrooms are not technically vegetables or fruits. Mushrooms are fungi and belong to their own kingdom. They are more closely related to humans than plants. Mushrooms do not contain chlorophyll, which is a key characteristic of plants, as it is used to convert energy from sunlight into carbohydrates. Instead, mushrooms ''steal'' carbohydrates from plants.
Despite not being a vegetable or fruit in a botanical sense, mushrooms are often treated as vegetables in culinary contexts. They are usually cooked like vegetables and are commonly used as a vegetarian meat substitute. Mushrooms are also classified as vegetables in food grouping systems and are included in dietary guidance for vegetable intake.
Mushrooms provide a range of nutrients found in both plant- and animal-based food groups, including vitamins, minerals, and dietary fiber. Their unique nutrient profile and culinary characteristics have led to suggestions that the classification of foods into separate kingdoms (plants, animals, and fungi) should be reconsidered, with mushrooms potentially recognized as a "third food kingdom."
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Mushrooms are fungus, not mould or yeast
Mushrooms are allowed on the Whole30 diet. While it is true that mushrooms are fungus, this does not mean that they are mould or yeast. Fungi are a separate kingdom of organisms, distinct from bacteria, plants, and animals. They are eukaryotes, characterised by having true nuclei in their cells. Fungi can occur in yeast or mould form, but they are not the same. Yeasts are microscopic fungi consisting of solitary cells that reproduce by budding. Moulds, on the other hand, occur in long filaments called hyphae, which grow by apical extension.
Mushrooms are the fruiting bodies of fungi and can take many forms. They are responsible for producing spores for reproduction. These spores are made of chitin, the hardest naturally-made substance on Earth. Some mushrooms can be deadly, so it is important to know which ones are edible. Fungi play an essential role in our ecosystems, making up 90% of living things in forests and 50% on agricultural land.
Fungi can use various carbon sources to meet their synthesis needs for carbohydrates, lipids, nucleic acids, and proteins. They obtain their energy through the oxidation of sugars, alcohols, proteins, lipids, and polysaccharides. Fungi require a source of nitrogen for the synthesis of amino acids, purines, and pyrimidines. However, no type of fungus can fix nitrogen. Most fungi use nitrate, which is reduced to nitrite and then to ammonia.
Fungi can also be classified as dimorphic, meaning they can grow as yeasts or moulds depending on factors such as temperature, CO2 concentration, pH, and the levels of cysteine or other sulfhydryl-containing compounds. Fungi are capable of causing various diseases, including superficial, cutaneous, subcutaneous, systemic, or allergic diseases.
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Frequently asked questions
Yes, mushrooms are allowed on Whole30. They are vegetables, and therefore compliant with the Whole30 program. Portobello mushrooms can be used as bun substitutes.
Yes, there are many recipes that include mushrooms and are Whole30-compliant, such as Whole30 Bacon Mushroom Chicken Thighs and Balsamic Garlic Roasted Mushrooms.
Other Whole30-compliant foods include coconut milk, almond flour, cassava flour, and coconut flour.

























