The Effects Of Rhodiola Rosea L. Extract On Anxiety, Stress, Cognition And Other Mood Symptoms

Effect Decrease
Values Milford Epworth scale. Mean and SD. Control: before 8.21 (3.57), after 8.04 (4.78). Rhodiola: before 7.05 (3.59), after 6.41 (3.69).
Trial Design Randomized trial
Trial Length 1-2 Weeks
Number of Subjects 80
Sex Both Genders
Notes for this study:
In a randomized, unblinded trial, 80 participants with mild anxiety were allocated to take 200 mg of Rhodiola Rosea twice per day, or no treatment for 14 days.

The primary outcomes were anxiety as measured by STAI and stress as measured by the perceived stress scale, and there was a small, statistically significant greater reduction in both compared with the placebo group. Additionally, there was a statistically significantly greater reduction for Rhodiola for anger, confusion, and total negative mood, and no statistically significant difference for sleep quality, sleepiness, vigor, tension, fatigue, and depression, though fatigue, tension, depression, sleepiness, and sleep quality saw small, nonsignificant improvements compared with placebo.

Reaction time didn't see a statistically significant improvement.
Funding issues for this study:
"This research was supported by a grant funded by Dr Willmar Schwabe Gmbh & Co. KG."