Do Mushrooms Have Carbs? - Xotic Mushrooms

Do Mushrooms Have Carbs?

Mushrooms, often regarded as a vegetable in culinary terms, are not plants or animals but belong to a unique kingdom called fungi. 

Their savory flavor and versatility have made them a popular ingredient in countless dishes worldwide. But what about their carbohydrate content? 

Let's delve into the science behind mushrooms and carbohydrates, explore their nutritional profile, and discover how they fit into low-carb diets. 

Additionally, we'll uncover the lesser-known benefits of vitamin D and other essential nutrients found in mushrooms.

Do Mushrooms Have Carbs?

Yes, mushrooms do contain carbohydrates, but the amount is minimal. The carbohydrate content varies by type and typically ranges from 3 to 7 grams per 100 grams of mushrooms. This low carbohydrate content makes mushrooms a suitable choice for low-carb and keto diets.

The Science Behind Mushrooms and Carbohydrates

Mushrooms are unique organisms, belonging to a kingdom of their own known as fungi. Unlike plants, they lack chlorophyll and hence cannot produce their own food. The carbohydrates in mushrooms are part of their cell walls and play essential roles in providing energy.

When it comes to understanding mushrooms' carbohydrate content, it's essential to consider their nutritional composition. 

While mushrooms indeed contain carbs, the amount varies among different types. 

The primary carbohydrate present in mushrooms is glucose, a simple sugar vital for energy production in the body. 

The mushroom cell walls also contain chitin, a complex carbohydrate that differs from the cellulose found in plant cell walls

Nutritional Profile of Mushrooms

The nutritional content of mushrooms is rich and varied. They contain a small amount of carbohydrates, but it's not just about carbs; mushrooms are packed with proteins, vitamins, and minerals.

  • Carbohydrates: Usually ranging from 3 to 7 grams per 100 grams, depending on the type.
  • Proteins: An excellent source for vegetarians, mushrooms contain around 2-3 grams per 100 grams.
  • Vitamins: Rich in B vitamins, particularly niacin, riboflavin, and pantothenic acid.
  • Minerals: Contains essential minerals like copper, potassium (305 milligrams), and selenium.
  • 21 calories
  • 0.3 grams of fat
  • 1 gram of fiber
  • 1.9 grams of sugar
  • 83 milligrams of phosphorus
  • 7 international units of vitamin D

Carbs and Calories in Mushrooms

Though present, carbohydrates in mushrooms are relatively low. Here's a comparison for a better understanding:

  • White mushrooms: 3.26 grams per 100 grams, 22 calories.
  • Portobello mushrooms: 3.87 grams per 100 grams, 26 calories.
  • Shiitake mushrooms: 6.79 grams per 100 grams, 34 calories.

This minimal carb content makes mushrooms an excellent choice for many diets, including low-carb and keto diets.

Mushrooms vs Other Vegetables

When compared to other vegetables, mushrooms stand out for their low carbohydrate content. For instance:

  • Carrots: 10 grams of carbs per 100 grams.
  • Broccoli: 7 grams of carbs per 100 grams.
  • Spinach: 3.6 grams of carbs per 100 grams.
  • A 100-gram serving of white mushrooms contains only 3.26 grams of carbs, while the same serving of potatoes contains a considerably higher amount of carbs, around 17 grams.

Mushrooms also provide unique flavors and textures, making them a versatile ingredient in culinary applications.

How to Include Mushrooms in a Low-Carb Diet

For individuals following low-carb diets, incorporating mushrooms into their meals is a culinary delight. 

These versatile fungi can add flavor, texture, and substance to various dishes without significantly impacting carb intake. 

Sautéed mushrooms can complement meat or fish dishes, while grilled portobello mushrooms can serve as a delicious alternative to burger buns. 

Additionally, mushroom-based soups, stews, and salads offer satisfying low-carb options for any meal.

Here are other ways:

  • Stir-Fry: A combination of different mushrooms with other low-carb vegetables.
  • Stuffed Mushrooms: Fill with cheese and herbs for a delicious, low-carb snack.
  • Grilled Portobello: Use as a burger bun substitute.

Vitamin D and Other Nutrients

Beyond their low-carb content, mushrooms offer additional health benefits due to their nutrient-rich composition. 

Some types of mushrooms are excellent sources of vitamin D, a vital nutrient for bone health, immune function, and overall well-being. 

These mushrooms contain ergosterol, a compound that converts into vitamin D upon exposure to UV light. However, it's essential to ensure mushrooms are sourced from reliable suppliers to ensure proper vitamin D content.

In addition to vitamin D, mushrooms provide an array of other essential nutrients. Copper aids in energy production, while iron is critical for various bodily functions, including hemoglobin synthesis and neurotransmitter production. 

Potassium plays a key role in maintaining fluid balance and nerve conduction, and B vitamins contribute to energy release from food.


Mushrooms may be low in calories and carbs, but they are far from lacking in nutritional value. 

These fungi offer an impressive array of vitamins, minerals, and antioxidants, making them an excellent addition to any diet. 

For those on low-carb meal plans, mushrooms present a versatile and tasty option to enhance their culinary experiences without compromising their carb goals. 

So, whether you're sautéing, grilling, or simmering them into soups, mushrooms are a nutrient-dense, low-carb wonder of nature that can elevate your meals to new heights of flavor and healthfulness.

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