The Cordyceps mushroom grows in the highlands of Tibet, China and India, where it is a very unusual breeding ground.
Cordyceps sinensis contains not only vitamins, trace elements and essential amino acids, but also cordycepin, ergosterol, oficordin, galactomannan and L-tryptophan. Mushrooms also contain specific polysaccharides and glycoproteins.
The recommended adult dose is 4-12 capsules per day with water.
Sources:
CORDYCEPS: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews (webmd.com)
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