| Effect | None |
| Trial Design | Double blind |
| Trial Length | 1-6 months |
| Number of Subjects | 16 |
| Sex | Male |
| Age Range | 18-29, 30-44 |
| Body Types | Trained, Average |
450mg of ursolic acid (from rosemary) in three divided doses of 150mg with meals over the course of 8 weeks, in subjects who were physically training (and had a history of training), did not appear to modify body composition more than placebo but increased serum irisin (12%) and IGF-1 (22.8%) more than placebo.
Strength (power output isokinetically at peak torque) was increased more with ursolic acid than it was with placebo.
