In some parts of the world, the healing powers of mushrooms have been known for more than 5,000 years. The western world has taken somewhat longer to discover their benefits. Now, however, they are being taken very seriously, so much so in fact, that the government has sanctioned preliminary studies with Maitake D-fraction, the supplement containing Maitake mushrooms. This book details those studies along with other information about this valuable natural supplement, including its uses in cancer treatment and diabetes. Charts and graphs throughout clearly document the study results.