As a specialty of Wutai County, Xinzhou City, Shanxi Province, the Nostoc Commune from Mount Wutai is pure natural green food, which is collected from the wild, washed by clean water and dried through natural ventilation.

 Nostoc Commune, also known as lichen, is a combination of fungi and algae. It usually grows in dark and humid places, has dark and black color, and looks like softened black edible fungus. Being rich in protein, vitamins, phosphorus, zinc, calcium and other minerals, it enjoys the reputation of “treasure on the ground”. As an ideal material to make soup, it boasts unique flavor, and can also be served coldor stewed. Scientists found that one ingredient in Nostoc Commune can inhibit the activity of acetylcholinesterase in human brain, thereby it can be used for the treatment of Alzheimer’s disease.