Related studies and records

• Background

  No evidence that wild lingzhi is better

  Nearly a hundred species of wild Ganoderma fungi have been found in China, most of which have never been studied for efficacy or toxicity; wild lingzhi is often mixed up with other polypore fungi that are hard to tell apart and harmful if eaten by mistake. There is no evidence that wild lingzhi works better than cultivated lingzhi. Wild lingzhi is often eaten by insects while still young and is easily contaminated by molds. Using wild lingzhi of varied origins as raw material also makes it hard to keep product quality consistent.

  Book on lingzhiSummarized from a published book; verifiable by title and ISBN
  How the study was done Published book · see title and ISBN in the source
• Background

  The more controlled the growing conditions, the more consistent the quality

  A large-scale survey by the Institute of Edible Fungi of the Shanghai Academy of Agricultural Sciences found that no single growing region produced the highest levels of active components in every variety, and no single variety performed well wherever it was grown; what matters is how well region and variety suit each other. Weather varies from year to year and also affects component levels, so the more temperature, humidity, light and ventilation can be controlled during cultivation, the more consistent lingzhi quality will be.

  Book on lingzhiSummarized from a published book; verifiable by title and ISBN
  How the study was done Published book · see title and ISBN in the source