Kava, derived from the root of the Piper methysticum plant native to the South Pacific, has a long cultural history of use as a ceremonial and social beverage valued for its calming properties. Research suggests that kavalactones, the active compounds in kava, may help promote relaxation and ease feelings of anxiety, with several clinical studies indicating meaningful improvements in stress-related symptoms compared to placebo. Some evidence also points to potential benefits for sleep quality, particularly in individuals whose rest is disrupted by anxious thoughts or tension. Kava is commonly available as a water-based extract, standardized kavalactone extract, or traditional root powder, though it is worth noting that research has also raised questions about liver safety with certain preparations, making informed and cautious exploration of the evidence especially worthwhile.
Compare this supplementResearch suggests that kava has a reasonably consistent body of support for its relaxation and anxiolytic effects, wi...
View studies →Research suggests that kava may offer some benefits for sleep quality, particularly through mechanisms involving deep...
View studies →Research suggests that the available evidence on kava and anxiety relief is limited in scope within this particular d...
View studies →Research suggests that kava may support stress relief and relaxation, with available evidence drawing from a large-sc...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Extract | 120–250 mg | Daily | anxiety relief | Common in clinical trials using standardized kavalactone extracts (30% kavalactones) |
| Extract | 300–400 mg | Daily | generalized anxiety disorder | Used in RCTs, including Sarris et al. 2013 (Journal of Clinical Psychopharmacology) |
| Extract | 200–300 mg | Nightly | sleep quality improvement | Used in sleep-focused trials; kavalactone content standardized at 30–70% |
| Extract | 120–240 mg | As needed | stress relief and relaxation | Based on acute-dose RCTs studying stress response and mood |
| Powder | 2–4 g | As needed | relaxation and ceremonial use | Traditional Pacific Islander use; also referenced in ethnobotanical and observational studies |