Funghi
Button Mushroom
Button mushroom (Agaricus bisporus) is the world's most widely cultivated edible fungus, sold as white buttons, brown chestnut or cremini, and fully mature open-capped portobellos. Mild, meaty, and versatile, it suits raw salads, sautés, grilling, stuffing, and drying. Stage of maturity defines culinary identity more than species: closed buttons stay firm and pale, cremini deepen in flavour, and portobellos offer steak-like caps for roasting and grilling.
Also known as: Closed Cup / Flat, Button / Portobello, Champignon de Paris, Prataiolo / Portobello, Champignon
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Nutrition
Typical values per 100 g edible portion. Nutrient names open the reference page.
Nutrition Facts
Per 100 g edible portion
Amount per 100 g
- Total Fat 0.39 g
- Saturated Fat 0.1 g
- Trans Fat 0 g
- Monounsaturated Fat 0 g
- Polyunsaturated Fat 0.18 g
- Cholesterol 0 mg
- Sodium 9.72 mg
- Salt 0.05 g
- Total Carbohydrate 4.05 g
- Dietary Fibre 2.07 g
- Total Sugars 1.45 g
- Complex / starch 0.48 g
- Protein 2.82 g
- Water 86.1 g
- Energy 29 kcal
- Water 86.1 g
- Carbohydrates 4.05 g
- Sugars 1.45 g
- Monosaccharides 1.02 g
- Disaccharides 0.43 g
- Starch 0.48 g
- Amylose 0.12 g
- Amylopectin 0.36 g
- Digestible Starch 0.41 g
- Resistant Starch 0.05 g
- Fibre 2.07 g
- Soluble Fibre 0.72 g
- Insoluble Fibre 1.35 g
- Protein 2.82 g
- Fungal Protein 2.68 g
- Fat 0.39 g
- Saturated Fat 0.1 g
- Polyunsaturated Fat 0.18 g
- Vitamins 61.8 mg
- Vitamin A 20 µg
- Vitamin B1 — Thiamine 0.09 mg
- Vitamin B2 — Riboflavin 0.43 mg
- Vitamin B3 — Niacin 4.3 mg
- Vitamin B6 0.11 mg
- Vitamin B7 — Biotin 8.4 µg
- Vitamin B9 — Folate 20.7 µg
- Vitamin C 2 mg
- Vitamin D 3.1 µg
- Vitamin E 0.1 mg
- Vitamin K 1 µg
- Minerals 315 mg
- Major Minerals 308 mg
- Trace Minerals 6.8 mg
- Salt 0.05 g
- Sodium Chloride 0.05 g
Vitamins
vitamin-c: 2 · vitamin-a: 20 · vitamin-b1-thiamine: 0.09 · vitamin-b2-riboflavin: 0.43 · vitamin-b3-niacin: 4.3 · vitamin-b5-pantothenic-acid: 1.6 · vitamin-b6: 0.11 · vitamin-b7-biotin: 8.4 · vitamin-b9-folate: 20.7 · vitamin-d: 3.1 · vitamin-e: 0.1 · vitamin-k: 1 ·
Minerals
Sodium: 9.72 · Potassium: 239 · Calcium: 59 · Iron: 1.4 · Zinc: 0.4 · Iodine: 5 ·
Mushrooms are high-water fungal tissue with modest protein and distinctive beta-glucans.
Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
History
Paris-region growers began systematic Agaricus cultivation in quarries and caves.
Commercial mushroom farms expanded in North America and Europe for urban markets.
A spontaneous white mutation of brown Agaricus became the modern white button standard.
Portobello branding of mature brown caps created a premium steak-mushroom category worldwide.