Some of the most common types of edible Mushrooms include portobello, oyster, shiitake, porcini, morel, nike and button. They are a great source of Vitamin B and have the highest source of selenium in comparison to other products on the shelves. Mushrooms provide the body with proteins, dietary fibers and carbohydrates. They also contain a long list of minerals such as copper, potassium, iron and phosphor. The health benefits of Mushrooms include decreased risk of cancer, lowered cholesterol and a boosted immune system. They’re useful for brain and gut health as well.