Canned mushrooms have 33 calories, 0g of Fat, 561mg of Sodium, 7g of carbohydrates, 3g of dietary fiber, 3g of sugar, and 2g of protein. Fresh white Canadian mushrooms have 29 calories, 0g of Fat, 7mg of Sodium, 4g of carbohydrates, 1g of Dietary Fiber, 2g of sugar and 4g of protein.