How Many Calories Are in a Portobello Mushroom

If you’re conscious about your calorie intake or following a specific diet, knowing how many calories are in a Portobello mushroom can be beneficial.

Portobello mushrooms are a popular and versatile ingredient in various culinary preparations. Whether you’re a vegetarian or a meat lover, these mushrooms offer a rich and earthy flavor that can enhance the taste of many dishes.

In this articleđź“‘, we will explore the nutritional profile of Portobello mushrooms and shed light on the number of calories they contain.

How many calories are in a Portobello mushroom

Nutritional Profile of Portobello Mushrooms

Portobello mushrooms🍄 are not only low in calories but also rich in essential nutrients. Here’s a breakdown of their nutritional composition:

Carbohydrates and Fiber

Portobello mushrooms are relatively low in carbohydrates, making them a suitable choice for individuals following a low-carb diet. They contain approximately 5 grams of carbohydrates per 100 grams.

Additionally, they are an excellent source of dietary fiber, with around 2 grams per 100 grams. Fiber aids in digestion, promotes satiety, and supports overall gut health.


Protein is an essential macronutrient that plays a vital role in various bodily functions. Portobello mushrooms are relatively high in protein compared to other vegetables.

They contain approximately 3 grams of protein per 100 grams, making them a valuable addition to vegetarian and vegan diets.

Vitamins and Minerals

Portobello mushrooms are rich in several vitamins and minerals. They are a good source of vitamin B2 (riboflavin), which supports energy production and helps maintain healthy skin.

These mushrooms also contain significant amounts of vitamin B3 (niacin), which is essential for proper enzyme function and cellular metabolism.

Furthermore, they provide minerals such as potassium, phosphorus, and selenium.

How Many Calories Are in a Portobello Mushroom

The calorie content of Portobello mushrooms can vary depending on whether they are consumed raw or cooked.

Here’s an overview of their calorie content: 👇

Raw Portobello Mushrooms

A 100-gram serving of raw Portobello mushrooms contains approximately 22 calories.

These mushrooms are often enjoyed in salads, where their unique flavor adds depth to the dish without significantly increasing its calorie content.

Cooked Portobello Mushrooms

When cooked, the calorie content of Portobello mushrooms may slightly increase due to moisture loss. However, the difference is minimal.

A 100-gram serving of cooked Portobello mushrooms still contains around 30-35 calories, making them a light and nutritious choice for various recipes.

Health Benefits of Portobello Mushrooms

Apart from their low-calorie content, Portobello mushrooms offer several health benefits. Here are some notable advantages of incorporating them into your diet:

Antioxidant Properties

Portobello mushrooms are a rich source of antioxidants, including selenium and ergothioneine.

These compounds help protect the body’s cells from damage caused by free radicals, reducing the risk of chronic diseases and promoting overall well-being.

Cardiovascular Health

The fiber content in Portobello mushrooms, coupled with their low sodium content, can support heart health.

Fiber helps regulate cholesterol levels, while the low sodium content contributes to maintaining healthy blood pressure.

Immune System Support

Portobello mushrooms contain beta-glucans, which are natural immune system boosters.

These compounds enhance the activity of immune cells, helping to strengthen the body’s defense against infections and diseases.

Also Read: How Many Calories Are in Mushrooms?

Incorporating Portobello Mushrooms into Your Diet

Now that you understand the nutritional value and health benefits of Portobello mushrooms, here are a few creative ways to incorporate them into your diet:

Grilled Portobello Mushroom Burgers

Grilled Portobello Mushroom Burgers

Replace traditional beef patties with grilled Portobello mushrooms for a flavorful and healthy twist on burgers. Marinate the mushrooms in your favorite seasonings, grill them, and serve on a bun with your preferred toppings.

Stuffed Portobello Mushrooms

Stuffed Portobello Mushrooms

Prepare a delicious and satisfying appetizer by stuffing large Portobello mushrooms with a mixture of breadcrumbs, cheese, herbs, and vegetables. Bake them until golden and enjoy a tasty and nutrient-packed snack.

Portobello Mushroom Pizza

Portobello Mushroom Pizza

For a lighter pizza option, use Portobello mushroom caps as the base instead of traditional dough. Top the caps with tomato sauce, cheese, and your favorite pizza toppings. Bake until the cheese is melted and bubbly for a guilt-free pizza experience.

Also Read: Can You Eat Portobello Mushrooms Raw?


Portobello mushrooms are a low-calorie, nutrient-rich ingredient that can enhance the flavor and nutritional profile of your meals.

With only around 22 calories per 100 grams when consumed raw, they are an excellent choice for those looking to manage their calorie intake.

Additionally, their impressive nutritional composition, including fiber, protein, and various vitamins and minerals, makes them a valuable addition to any diet.

By incorporating Portobello mushrooms into your meals, you can enjoy their health benefits while savoring their unique taste.

Also Read: Are Portobello Mushrooms Good for You?


How many calories are in a Portobello mushroom?

On average, a medium-sized Portobello mushroom contains approximately 30 calories.

Are Portobello mushrooms low in calories?

Yes, Portobello mushrooms have a low-calorie content compared to many other foods.

Do the calories in Portobello mushrooms vary based on size?

Yes, the number of calories can vary slightly based on the size of the Portobello mushroom. The average calorie count is based on a medium-sized mushroom.

Are there any carbohydrates in Portobello mushrooms?

Yes, Portobello mushrooms contain a small amount of carbohydrates, usually around 6 grams per medium-sized mushroom.

Are Portobello mushrooms a good choice for a low-calorie diet?

Yes, experts often recommend portobello mushrooms for low-calorie diets because they have low-calorie content and offer high nutritional value.

Can Portobello mushrooms be a part of a weight loss plan?

Absolutely! You can include portobello mushrooms in a weight loss plan because they are low in calories and can help add volume and flavor to meals without adding excessive calories.

How can I prepare Portobello mushrooms to keep the calorie count low?

Grilling, roasting, or sautéing Portobello mushrooms with minimal oil or using a non-stick cooking spray can help keep the calorie count low.

Do Portobello mushrooms have any health benefits other than being low in calories?

Yes, Portobello mushrooms are a good source of dietary fiber, potassium, and antioxidants, which provide various health benefits such as improved digestion and immune system support.

Can I use Portobello mushrooms as a meat substitute in dishes like burgers?

Yes, people commonly use portobello mushrooms as a meat substitute because of their hearty texture and rich flavor.

Are there any potential allergens or risks associated with Portobello mushrooms?

Generally, Portobello mushrooms are safe to consume for most individuals. However, some people may have allergies to mushrooms, so it’s important to be cautious if you have a known mushroom allergy.

Are Portobello mushrooms suitable for vegetarian or vegan diets?

Yes, Portobello mushrooms are suitable for both vegetarian and vegan diets, as they are plant-based and do not contain animal products.

Can I consume Portobello mushrooms raw?

You can consume Portobello mushrooms raw, but people often cook them to enhance their flavor and improve their digestibility. Cooking also helps break down certain compounds that may hinder nutrient absorption.

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