We suggest a serving size of 5.5 oz (about 100-200 grams) for our fresh oyster mushrooms and 10-20g for our dried oyster mushrooms. “While we do not have a nutritional profile of our oysters, one credible source says that their dried oyster mushrooms register at, “Per 100 g; calories: 360; protein: 27.25 g; fat: 2.75 g; polyunsaturated fat: 1.16 g; total unsaturated fat: 1.32 g; saturated fat: .2g; carbohydrates: 56.53 g; complex carbohydrates: 38.43 g; sugars: 18.1 g; dietary fiber: 33.4 g; cholesterol: 0 mg; vitamin A: 0 IU; thiamine (B1): .16 mg; Vitamin D: 116 IU; calcium: 20 mg; copper: 1.69 mg; iron: 9.1 mg; potassium: 2,700 mg; niacin: 54.3 mg; riboflavin: 2.04 mg; selenium: .035 mg; sodium: 48 mg;”” This info is from the book Mycelium Running by Paul Stamets.