Valerian Supplement Guide
Evidence-based information on Valerian benefits, dosage, safety, and food sources — sourced from NIH, FDA, and PubMed.
Our assessment
The evidence shows that valerian is most commonly used as a sleep aid and for anxiety. However, the data on its effectiveness is mixed, and it is not a guaranteed solution for everyone. Data not available for specific dosage recommendations from the provided sources.
How it works
Valerian is thought to work by increasing levels of a neurotransmitter called gamma-aminobutyric acid (GABA) in the brain, which has a calming effect. This mechanism may help you fall asleep faster and improve sleep quality NIH ODS ↗.
Safety profile
Data not available for FDA adverse event reports. Data not available for specific side effects from the provided FDA data. The NIH ODS notes that valerian is generally considered safe for short-term use, but long-term safety data is lacking NIH ODS ↗.
Our recommendation
If you are considering valerian for sleep, you may try it for short-term use, but be aware that the evidence is not strong. Data not available for a specific starting dose. Always consult your healthcare provider before starting any new supplement, especially if you take other medications NIH ODS ↗.
AI-assisted analysis based on NIH ODS, FDA, and PubMed data. Citations are linked to original sources.
Clinical Evidence
Valerian has been studied in 3+ clinical studies:
Investigation of the Role of Chemical Analysis in Causality Assessment of Herbal and Dietary Supplem...Halegoua-DeMarzio D · 2025
Dietary supplement intake in women with breast cancer before and after diagnosis: results from the S...Hauner D · 2024
Healthcare Professionals' Knowledge and Behaviors Regarding Drug-Dietary Supplement and Drug-Herbal ...Stanojević-Ristić Z · 2022