| Effect | Decrease |
| Trial Design | Double blind |
| Trial Length | 6+ Months |
| Number of Subjects | 198 |
| Sex | Both Genders |
| Age Range | 30-44, 45-64 |
| Body Types | Average |
1.5g of a water-soluble Reishi extract (from mycelia) daily for one year experienced a decrease in count and size of colonic adenomas while the control group experienced an increase in count and size, suggesting therapeutic efficacy in suppressing colon cancer.
