Shiitake mushroom is a fungus. An extract made from this mushroom is used as medicine.
Shiitake mushroom is used to boost the immune system and to treat HIV/AIDS, common cold, flu (influenza), and many other conditions, but there is no good scientific evidence to support these uses.
How does it work?
Shiitake mushroom contains chemicals that might stimulate the immune system.
Other names: "sawtooth oak mushroom", "black forest mushroom", "black mushroom", "golden oak mushroom" ali "oakwood mushroom".