Portobello Mushrooms Nutrition Facts

Calories, fat, protein, and carbohydrate values for Portobello Mushrooms.


There are 15 calories in Portobello Mushrooms.


Nutrition Facts
Portobello Mushrooms
Serving Size:


mushrrom cap (50 grams)

Amount Per Serving
Calories from Fat 2.6
Calories 15

% Daily Value*

Total Fat 0.3 grams

Saturated Fat 0 grams

Trans Fat 0 grams
Polyunsaturated Fat 0.1 grams
Monounsaturated Fat 0 grams

Cholesterol 0 milligrams

Sodium 5.5 milligrams

Potassium 220 milligrams

Total Carbohydrates 2.2 grams

Dietary Fiber 1.1 grams

Sugars 1.1 grams
Protein 1.7 grams

Vitamin A


Vitamin C





Percent Daily Values are based on a 2000 calorie diet.

Food / Beverages > Produce > Mushrooms > Portabella Mushrooms (Fresh)

How long would it take to burn off 15 KCal?
Walking (3mph) 4 minutes
Running (6mph) 1 minutes
Bicycling (10mph) 2 minutes
Values estimated based on person weighing 140 lbs.

What’s the difference between a portobello mushroom and a regular mushroom?

THEY ARE LITERALLY THE SAME TYPE OF MUSHROOM. They are all Agaricus bisporus, in fact, just different ages: button mushrooms, which are white, are the toddlers; cremini mushrooms, which are brown, are the teenagers; and portobellos, which are brown and much larger versions of their younger selves, are the adults.

Additional Information

Portobello mushrooms, also known as portabella mushrooms, are a popular choice among mushroom lovers and culinary enthusiasts alike. These large, meaty mushrooms are not only delicious, but also offer a number of nutritional benefits. In this expert article, we will explore the characteristics, benefits, and drawbacks of Portobello mushrooms and shed light on why they have gained such popularity in the culinary world.

Characteristics of Portobello Mushrooms

Portobello mushrooms are the mature form of the common button mushroom, scientifically known as Agaricus bisporus. These mushrooms have a distinctive appearance with a large, rounded cap and a thick, meaty texture. Unlike their younger counterparts, portobello mushrooms have a rich brown color and a robust flavor profile.
When it comes to cooking, portobello mushrooms offer versatility. Because of their large size and dense texture, they can be used as a meat substitute in vegetarian and vegan dishes. They are often grilled, roasted, or stuffed, which allows them to absorb flavors while maintaining their substantial texture.

Benefits of Portobello Mushrooms

  1. Nutrient Rich: Portobello mushrooms are a low-calorie food that packs a nutritional punch. They are a good source of vitamins and minerals, including riboflavin (vitamin B2), selenium, potassium, and fiber.
  2. Riboflavin Powerhouse: Riboflavin plays a critical role in energy production by helping to break down carbohydrates into fuel. Portobello mushrooms are an excellent source of riboflavin, making them a beneficial addition to a well-rounded diet.
  3. Antioxidant properties: These mushrooms contain antioxidants that help fight oxidative stress and protect cells from damage. The antioxidant profile of portobello mushrooms contributes to overall health and well-being.
  4. Vegetarian-friendly meat substitute: With their meaty texture and umami flavor, portobello mushrooms are a popular choice for vegetarian and vegan dishes. They can be used as a meat substitute in burgers, sandwiches and stir-fries, providing a satisfying and flavorful alternative.
  5. Fiber: Portobello mushrooms are a good source of fiber, which aids in digestion and promotes a healthy gut. Including them in your meals can help you maintain a balanced and fiber-rich diet.

Disadvantages of Portobello Mushrooms

While Portobello mushrooms offer many benefits, it’s important to consider some potential drawbacks:

  1. Allergies and Sensitivities: Some people may be allergic or sensitive to mushrooms. If you have a known allergy or sensitivity, it’s important to exercise caution and consult a healthcare professional before incorporating portobello mushrooms into your diet.
  2. High water content: Portobello mushrooms have a high water content, which can cause them to release moisture during cooking. This can affect the texture and result in a more watery dish. Sautéing or grilling the mushrooms can help mitigate this problem.
  3. Limited availability and cost: Depending on your geographic location and season, portobello mushrooms may not always be readily available. They can also be more expensive than other types of mushrooms.


Portobello mushrooms are a versatile and nutritious ingredient that offers a range of benefits in the culinary world. With their meaty texture, rich flavor and several health benefits, they are an excellent choice for both vegetarians and meat lovers. However, it’s important to be aware of potential allergies, manage their high water content during cooking, and consider availability and cost factors. By understanding the characteristics, benefits and drawbacks of portobello mushrooms, you can make informed decisions about incorporating them into your meals, ensuring a delicious and nutritious culinary experience.

Questions and Answers

What is the difference between Portobello mushrooms and regular mushrooms?

Portobello mushrooms and regular mushrooms, such as button mushrooms, are actually the same species, Agaricus bisporus, at different stages of maturity. Button mushrooms are the youngest, cremini mushrooms are the teenagers, and portobellos are the mature, larger versions of the same mushroom.

Are portobello mushrooms a good nutritional source?

Yes, portobello mushrooms are nutrient-dense. They are a good source of riboflavin (vitamin B2), selenium, potassium, and fiber. These mushrooms also contain antioxidants, which contribute to overall health and well-being.

Can Portobello mushrooms be used as a meat substitute?

Absolutely! Portobello mushrooms are often used as a meat substitute in vegetarian and vegan dishes. Their meaty texture and umami flavor make them a popular choice for burgers, sandwiches, and stir-fries. They are a satisfying and flavorful alternative to meat.

Are there any potential allergenic risks associated with Portobello mushrooms?

While portobello mushrooms are generally safe to consume, some people may have allergies or sensitivities to mushrooms. If you have a known allergy or sensitivity, it’s important to exercise caution and consult with a healthcare professional before incorporating portobello mushrooms into your diet.

Are portobello mushrooms high in water content?

Yes, portobello mushrooms are high in water content. During cooking, they can release moisture, which can affect the texture of the dish and make it more watery. To mitigate this, sautéing or grilling the mushrooms can help evaporate excess moisture and enhance their flavor and texture.