Effects of Valerian on Sleep Quality, Depression, and State Anxiety in Hemodialysis Patients and other populations: a systematic review and meta-analysis
Shinjyo N, Waddell G, Green J
Published in Journal of Evidence-Based Integrative Medicine
Methodology
Systematic review and meta-analysis of 60 studies of valerian for sleep and associated disorders including anxiety
Key Findings
Whole-root valerian preparations showed more consistent benefit for sleep and anxiety than other preparations, which may explain earlier inconsistent findings
Conclusions
Valerian may be effective for sleep and anxiety when whole-root preparations are used
Limitations
Variable product chemistry; many small studies of moderate quality
Supplements Studied
Whole-root valerian preparations showed more consistent benefit for sleep and anxiety than other preparations
Outcomes Measured
Results suggested that inconsistent outcomes were possibly due to the variable quality of herbal extracts and that more reliable effects could be expected from the whole root/rhizome.
Valerian preparations were associated with reductions in state anxiety
Related Health Concerns
Study Details
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