1. This kind of products produced in the 4200 meters above sea level more than a few places. When golden brown, born in the grass, dried shall be white. Only 8 months each year the days can be picked up. White pileus small flesh shank, short, good smell. White bacteria in calcium, phosphorus, iron and other minerals, but also full of protein, fat, carbohydrates, crude fiber, high nutritional value. 2.Mushrooms are the only fresh vegetable or fruit with vitamin D. Similar to the way that humans absorb sunlight and convert it to vitamin D, mushrooms contain a plant sterol—ergo sterol—that converts to vitamin D when exposed to sunlight. The top three selling mushroom varieties (button and portabella) have vitamin D ranging from 1 to 97 percent of the Daily Value (400 IU) per raw 84 gram serving.