Chaga mushroom cancer | Medicinal mushrooms | Biobritte mushroom center. There is a growing interest in medicinal mushrooms including Chaga and their effects on different health conditions. Several experimental and animal studies suggest an anti-cancer potential of Chaga mushroom in different cancer types such as lung, colon/colorectal, cervical, liver, melanoma/skin, prostate, and breast cancers. However, clinical studies to confirm the benefits of Chaga mushroom extracts are needed.  Avoid randomly using Chaga mushroom supplements for cancer treatment or prevention without scientific explanations and guidance of a health care provider to stay away from undesired side effects. Chaga mushrooms (Inonotus obliquus) are fungi that grow on the trunks of birch trees in places with cold climates, such as Siberia, Northern Europe, Russia, Korea, Canada, and certain parts of the United States.  These mushrooms produce a woody growth, called conk, that looks like burnt charcoal. The inside core