
Grilled mushrooms are a tasty treat, but how many carbs do they contain? Well, it depends on the type of mushroom and the amount you're grilling. For example, a cup of grilled portobellos contains 21 grams of carbohydrates, while a serving of grilled mushrooms (around 100 grams) contains only 9% carbs, which is about 9.9 grams. On the other hand, half a cup of cooked fresh mushrooms contains just 4.1 grams of total carbs. So, depending on your mushroom variety and cooking method, the carb count can vary.
| Characteristics | Values |
|---|---|
| Carbohydrates | 3.6 grams per 100 grams of lion's mane mushrooms3.1 grams of dietary fiber per cup of grilled portobellos4.1 grams per 0.5 cup of mushrooms, cooked from fresh |
| Calories | 24 per 100 grams of lion's mane mushrooms35 per cup of grilled portobellos22 per 0.5 cup of mushrooms, cooked from fresh99 per serving of grilled mushrooms |
| Fat | 84% per serving of grilled mushrooms0.3 grams per cup of grilled portobellos, including 0.1 grams of saturated fat0.4 grams per 0.5 cup of mushrooms, cooked from fresh |
| Protein | 2.4 grams per 100 grams of lion's mane mushrooms3.9 grams per cup of grilled portobellos1.7 grams per 0.5 cup of mushrooms, cooked from fresh7% per serving of grilled mushrooms |
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What You'll Learn

Carb content varies by mushroom type
A cup of raw mushrooms contains 8 calories, while cooked mushrooms contain 22 calories per cup, with 4.1 grams of total carbs, 1.7 grams of net carbs, 0.4 grams of fat, and 1.7 grams of protein. Sautéed mushrooms, on the other hand, have even fewer carbs, with only 0.2 grams of total carbs and 0.1 grams of net, fat, and protein each.
The type of mushroom also makes a difference. For instance, 100 grams of lion's mane mushrooms, which is slightly more than 3/4 of a cup, contains 3.6 grams of carbohydrates. This serving size provides several nutritional benefits, including higher intakes of energy, protein, thiamin, niacin, folate, copper, selenium, and sodium.
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Carb count differs between raw and cooked mushrooms
The carb count does differ between raw and cooked mushrooms. A cup of raw mushrooms contains 2.3g of total carbohydrates, 1g of net carbs, and 15 calories. On the other hand, cooked mushrooms have a slightly higher carbohydrate content. A half-cup serving contains 4.1g of total carbohydrates, 1.7g of net carbs, and 22 calories. This difference in carb count between raw and cooked mushrooms is primarily due to the loss of moisture during the cooking process, which concentrates the carbohydrates and other nutrients in a smaller volume.
When it comes to grilled mushrooms specifically, while I couldn't find specific data on their carb count, we can assume that the carb content increases relative to the weight of the mushrooms, similar to other cooked mushrooms. Grilled mushrooms are typically cooked with other ingredients like oil or butter, which can also influence the overall macronutrient composition.
The macronutrient breakdown of grilled mushrooms is approximately 9% carbohydrates, 84% fat, and 7% protein. This percentage can vary depending on the specific ingredients used and the cooking method. For example, if you use a margarine-based marinade for your grilled mushrooms, as some recipes suggest, the fat content will be higher.
It's important to note that the carb count in mushrooms, whether raw or cooked, is generally considered low compared to other food sources. This makes mushrooms a popular choice for low-carb diets, such as keto or Atkins. Additionally, mushrooms are a good source of dietary fibre, which can aid in digestion and overall gut health.
In conclusion, while the carb count differs between raw and cooked mushrooms, both preparations are relatively low in carbohydrates. The specific carb content will depend on the type of mushroom, the cooking method, and the accompanying ingredients. When monitoring carbohydrate intake, it is always important to consider the overall nutritional profile of the food, including its fibre, vitamin, and mineral content.
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Grilled mushrooms' calories and macros
The calorie and macronutrient content of grilled mushrooms can vary depending on the type of mushroom, the amount grilled, and the method of grilling. Here is a breakdown of the calories and macros for grilled mushrooms:
Calories
The number of calories in grilled mushrooms depends on the quantity consumed and the variety of mushroom. For example, a serving of grilled mushrooms, typically containing multiple pieces, has been estimated at 99 calories. A half-cup serving of grilled mushrooms, on the other hand, contributes only 8 calories to your daily intake. This discrepancy suggests that the former serving size is significantly larger than a half-cup.
When it comes to specific varieties, lion's mane mushrooms are reported to contain 24 calories per 100 grams, which is slightly more than 3/4 of a cup. Grilled portobellos have a higher calorie count, with 35 calories per cup. Shiitake mushrooms have the highest calorie content among the mentioned varieties, with a cup of cooked shiitakes containing 81 calories.
Macronutrients
In addition to providing calories, grilled mushrooms contribute to your daily intake of macronutrients, namely carbohydrates, fats, and proteins.
Carbohydrates
Carbohydrates are the primary source of energy for our bodies. A half-cup of cooked fresh mushrooms contains approximately 4.1 grams of total carbohydrates, while lion's mane mushrooms offer 3.6 grams of carbs per 100 grams (slightly more than 3/4 of a cup). The grilled portobellos, with 21 grams of total carbs per cup, offer a significantly higher amount.
Fats
Fats are essential for maintaining cell structure and absorbing certain nutrients. While specific data on the fat content of grilled mushrooms is scarce, we know that cooked fresh mushrooms provide 0.4 grams of fat per half-cup serving. Grilled portobellos offer slightly more, with 0.3 grams of total fat per cup, including 0.1 grams of saturated fat.
Proteins
Proteins are the building blocks of our bodies and play a crucial role in growth and repair. Cooked fresh mushrooms provide 1.7 grams of protein per half-cup serving. Lion's mane mushrooms offer a similar amount, with 2.4 grams of protein per 100 grams (slightly more than 3/4 of a cup). Grilled portobellos are particularly protein-rich, providing 3.9 grams of protein per cup.
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Nutritional benefits of grilling mushrooms
Grilled mushrooms are a tasty and nutritious treat, packed with vitamins, minerals, and antioxidants. They are a great option for a healthy, low-calorie side dish, with a relatively low-calorie density of 139 calories per 100g.
Mushrooms are a good source of antioxidants, which can help protect the body from free radicals, promoting cellular health and reducing oxidative stress. This, in turn, supports overall health and enhances the immune system. The antioxidant properties of mushrooms may also contribute to anti-aging by shielding skin cells from damage.
Mushrooms are also a source of vitamin B, selenium, copper, and potassium. They provide protein, with 0.5 cups of mushrooms containing 1.7g of protein. Mushrooms are low in sodium and carbohydrates, with a 0.5-cup serving containing 4.1g of total carbs and 1.7g of net carbs.
Grilling mushrooms is a great way to enhance their flavour and health benefits. The heat of the grill can bring out their earthy taste, and the caramelization adds a delicious depth of flavour. Grilled mushrooms are a versatile dish, pairing well with various proteins and barbecue foods.
Different types of mushrooms offer varying levels of antioxidants and nutritional profiles. For instance, lion's mane mushrooms are said to reduce inflammation, boost immune function, and improve cognitive health. Chaga mushrooms are purported to lower blood pressure and prevent cancer, while reishi mushrooms are believed to boost the immune system and shrink tumors.
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Low-carb grilled mushroom recipes
Grilled mushrooms are a tasty treat, and they can be a great low-carb option, too. A serving of grilled mushrooms contains only 9% carbs, making them a good choice for a low-carb diet. Here are some delicious low-carb grilled mushroom recipes to try:
Garlic Mushrooms
This is a quick and easy recipe that can be served as a side dish or added to other meals. It is also keto-friendly, gluten-free, and can be adapted for a Paleo or Banting diet.
To make garlic mushrooms, heat butter in a skillet over medium-high heat. Add your mushrooms and sprinkle with salt and pepper. Cook until tender, then stir in garlic and red pepper flakes. Turn off the heat once the garlic is fragrant and stir in parsley. This recipe works well with shiitake mushrooms, but any variety will do.
Sautéed Mushrooms
Sautéed mushrooms are another simple recipe that can be adapted for a keto or low-carb diet. They can be served as a side dish or added to pasta or an omelette.
To make sautéed mushrooms, cook the mushrooms in butter and olive oil over low heat for 8-10 minutes. Add garlic and deglaze the pan with white wine. Stir in salt, pepper, and herbs such as parsley and thyme.
Stuffed Mushrooms
A more involved recipe, stuffed mushrooms are a tasty vegetarian main dish. This recipe calls for portobello mushroom caps stuffed with tomatoes, fresh mozzarella, and basil, similar to a caprese salad.
To make stuffed mushrooms, remove the moisture from chopped mushrooms and fill with a creamy filling. Top with something crunchy and enjoy!
Mushroom and Spinach Salad
A hearty salad recipe, this dish combines mature spinach leaves with a warm mushroom and bacon vinaigrette. It can be served as a side dish or turned into a full meal by adding roasted asparagus, more baby spinach, and a splash of oil and vinegar.
Other Low-Carb Mushroom Ideas
Mushrooms are a versatile ingredient and can be added to many dishes to reduce the carb content. Try adding them to a stir-fry, using them as a pizza topping, or including them in a slow cooker with meat, vegetables, and herbs for a hearty stew.
There are plenty of ways to enjoy grilled mushrooms while sticking to a low-carb diet!
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Frequently asked questions
The number of carbohydrates in grilled mushrooms varies depending on the type of mushroom and the amount being consumed. On average, a serving of grilled mushrooms contains 9% carbs. This equates to approximately 3.6 grams of carbohydrates for 3/4 cup of lion's mane mushrooms, and 21 grams of carbohydrates for a cup of grilled portobellos.
The carb content of mushrooms can vary slightly depending on the cooking method. For example, sauteed mushrooms have a lower carb content, with 0.2 grams of total carbs per piece. However, cooking mushrooms is generally recommended as it breaks down their cell walls, making their beneficial nutrients more accessible to the human body.
Yes, grilled mushrooms are a good option for people watching their carb intake. They have a relatively low-calorie density and a small amount of net carbs, with 1.7 grams of net carbs per 0.5 cups of fresh mushrooms. Additionally, they provide other essential nutrients like protein, fiber, and vitamins.

























