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Calories in button mushrooms

A usual serving (100 g) has about 20 kcal; 100 g ≈ 22 kcal.

Serving kcal Protein Fat Carbs Fibre
100 g 22 3.1 g 0.3 g 2.3 g 1 g
1 serving 100 g 22 3.1 g 0.3 g 2.3 g 1 g

Source: fdc.nal.usda.gov · Confidence: high · Updated:

Calories per serving

Serving kcal Protein Fat Carbs
1 serving 100 g 22 3.1 g 0.3 g 2.3 g
Half a serving 50 g 11 1.6 g 0.2 g 1.2 g

How it fits into a day

A 100 g serving of fresh button mushrooms has only about 20 kcal and 3.1 g protein. Mushrooms soak up oil when fried, so braising them with a little water is the lighter choice. The calories come mainly from protein (about 50%) and carbs (about 40%).

A usual serving is about 1% of a 2,000 kcal day. How much do you need a day? Work it out in the calorie calculator.

Lighter options

  • Grilled mushrooms with garlic are a side with almost no calories.
  • Breaded mushrooms have far more calories because of the breadcrumbs and oil.

Frequently asked questions

How many calories are in a serving of mushrooms?

About 20 kcal in 100 g, with 3.1 g protein, 0.3 g fat and 2.3 g carbs.

How many calories are in 100 g of button mushrooms?

About 22 kcal per 100 g: 3.1 g protein, 0.3 g fat and 2.3 g carbs, plus 1 g fibre.

Do canned mushrooms have more calories?

Not much: they have a similar number of calories to fresh ones, but more salt.

See also

Full table: Vegetables, salads and spreads