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Calories in White Button Mushrooms
Per Serving

Article by Diet Bites

Caloric Values, Single Serving

This species of mushroom is the most popular at American food markets. And oh my - are they low in calorie content.

One cup of whole white mushrooms in their raw state contains about 21 calories. One large contains 5 kcals while one medium holds 4 and one small, only 2 kcals.

Health & Nutrition Notes for Button Mushrooms

There are numerous species of mushrooms that are harvested for the commercial market. They include: shiitake, Chanterelle, morel, white, portabella, brown, Italian, Crimini, enoki, oyster and maitake.

If you are an adept mushroom hunter, then you know of the risks to health that are involved in consuming mushrooms which may appear to be consumable, safe-to-eat mushrooms. On that note, if you are not an expert - then we strongly suggest that until you become one that you leave the harvesting to the experts.

Even in today's world we still hear about individuals dying because they ate poison mushrooms. In fact, there was a story in the news only last week where a person picked mushrooms from their backyard, put them into a stew; everyone who ate the stew died.

Nutrition Information for White Button Mushrooms

Vitamins, Minerals


1 Cup of Whole

Energy Values kcal 21
Protein g 2.97
Total lipid (fat) g 0.33
Carbohydrate, by difference g 3.13
Fiber, total dietary g 1.0
Calcium, Ca mg 3
Iron, Fe mg 0.48
Magnesium, Mg mg 9
Phosphorus, P mg 83
Potassium, K mg 305
Sodium, Na mg 5
Zinc, Zn mg 0.50
Vitamin C, total ascorbic acid mg 2.0


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