Do mushrooms have protein?

Mushrooms contain a type of protein, called hydrophobins, that is unique in structure only to mushrooms. This protein is believed to have anti-cancer, antiviral and antibacterial properties. Per 1 cup of sliced mushrooms, there are 2 grams of protein present.

Based on a 2,000-calorie diet, this accounts for 4 percent of a person's daily value of protein. Mushrooms are also nearly fat free and contain just 3.6 grams of carbohydrates per 1 cup, making them a good choice for people interested in losing weight. The combination of a mushroom's protein, natural glutamates and its other natural flavorings create the unique flavor and texture of a mushroom.