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.