The king oyster mushroom (Pleurotus eryngii) also known as king trumpet mushroom, French horn mushroom, boletus of the steppes and trumpet royale, is native to Mediterranean regions of Europe and often grows among the leaves of wild thistles, grasslands and roadsides. Its cultivation began in Japan and quickly spread to Taiwan, China, and later to Australia, Europe and North America.
Preliminary studies suggest that King oyster:
Activates and modulates the balance of the immune system
Produces substances that inhibit cholesterol biosynthesis
Contains antioxidant substances that delay aging
Is a great natural source of B vitamins (including vitamins B1, B2, B3, B6 and B9)
It is useful to combat constipation due to the large amount of fiber it has
Helps regulate blood pressure