Mushrooms are used medicinally by several cultures, but nowhere more than in China. Fungi, especially poly pores and other wood-rotting species, occupy a central role in the traditional Chinese pharmacopeia. The ling chih (Ganoderma lucidum, this page) is believed to promote well-being and longevity, and is a recurring motif in Chinese art. One of several species thought to stimulate the immune system, Grifola umbellata, has shown powerful cancer-inhibiting effects in double-blind experiments conducted in China. Both the tree ear and the shiitake lower blood cholesterol, and the latter also has anti-viral properties.
Since penicillin and several other “wonder drugs” are derived from fungi, one would expect mushrooms to be investigated vigorously by western medicine. Instead, they have been neglected, a tribute to the “worthless at best” aspect of fungophobia, a cultural inability to perceive mushrooms as potentially powerful. Also, there is a strong prejudice against “panaceas” as opposed to drugs with specific effects (see Andrew Weil’s comments on this page). For more information, consult Fungi Pharmacopoeia (Sinica) by Liu Bo and Bau Yun-sun (Oakland: Kinoko Company, 1980).