Reishi
Reishi, or lingzhi, is a woody mushroom of the genus Ganoderma with a long history in traditional Chinese and Japanese medicine.
Also listed as Lingzhi, Yeongji, Mannamtake, Mushroom Of Immortality
Side effects and liver reports
Reported effects include nausea and insomnia. Liver injury has been described in case reports involving powdered reishi, including a fatal case; such reports cannot establish how often this happens. 1
When medicines or testing change the decision
MSK flags possible bleeding risk with anticoagulants and concerns with immunosuppressants. Spore powder can also raise CA72-4, a tumor marker, potentially complicating cancer monitoring. These are reasons to discuss the exact product with the treating team. 1
For information, not individual medical advice. Ingredient studies do not establish the effectiveness of these products.
Sources
- Reishi Mushroom Memorial Sloan Kettering Cancer Center