Valerian
A plant whose root has a long history of traditional use for sleep and restlessness.
Traditional use
Valerian root is sold as tea, capsules, tinctures, and extracts. Products vary considerably in strength.
Evidence
Studies of sleep quality have produced inconsistent results. It should not replace evaluation for persistent insomnia or other sleep disorders.
Traditional uses
Used to support sleep and reduce mild nervous restlessness.
Scientific evidence
Some studies report modest improvements in perceived sleep quality, while others do not. Better research is still needed.
Precautions
May cause drowsiness. Do not combine with alcohol or sedatives, and do not drive after taking it. Pregnancy safety is not established.
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