Nutrient data for 11265, Mushrooms, portabella, raw ^a 

Nutrient values and weights are for edible portion

Nutrient	Unit	Value per 100.0g	cup diced 86g	piece whole 84g
Proximates
Water	g	92.82	79.83	77.97
Energy	kcal	22	19	18
Protein	g	2.11	1.81	1.77
Total lipid (fat)	g	0.35	0.30	0.29
Carbohydrate, by difference	g	3.87	3.33	3.25
Fiber, total dietary	g	1.3	1.1	1.1
Sugars, total	g	2.50	2.15	2.10
Minerals
Calcium, Ca	mg	3	3	3
Iron, Fe	mg	0.31	0.27	0.26
Phosphorus, P	mg	108	93	91
Potassium, K	mg	364	313	306
Sodium, Na	mg	9	8	8
Zinc, Zn	mg	0.53	0.46	0.45
Vitamins
Vitamin C, total ascorbic acid	mg	0.0	0.0	0.0
Thiamin	mg	0.059	0.051	0.050
Riboflavin	mg	0.130	0.112	0.109
Niacin	mg	4.494	3.865	3.775
Vitamin B-6	mg	0.148	0.127	0.124
Folate, DFE b	µg	28	24	24
Vitamin B-12	µg	0.05	0.04	0.04
Vitamin A, RAE	µg	0	0	0
Vitamin A, IU	IU	0	0	0
Vitamin E (alpha-tocopherol)	mg	0.02	0.02	0.02
Vitamin D (D2 + D3)	µg	0.3	0.3	0.3
Vitamin D	IU	10	9	8
Vitamin K (phylloquinone)	µg	0.0	0.0	0.0
Lipids
Fatty acids, total saturated	g	0.060	0.052	0.050
Fatty acids, total monounsaturated	g	0.020	0.017	0.017
Fatty acids, total polyunsaturated	g	0.117	0.101	0.098
Cholesterol	mg	0	0	0
Other
Caffeine	mg	0	0	0