Reishi mushroom, or Ganoderma lucidum, is a staple of Eastern medicine. It’s Chinese name, ling chih, means “mushroom of immortality.” Those drinking the tea continuously for two months report significant improvements in their well-being. One of reishi’s active ingredients, polysaccharides, is water-soluble. This makes mushroom tea a benefit to those with health concerns. Reishi mushroom tea is nontoxic and can be enjoyed daily without negative side effects.