Ashwagandha for Stress & Sleep: A Practical Guide
An adaptogen with growing clinical support. Here is what meta-analyses say about ashwagandha for stress, cortisol and sleep — and how to use it sensibly.
Ashwagandha (Withania somnifera) is an "adaptogen" — a herb traditionally used to help the body cope with stress. It is one of the more studied herbal supplements for stress and anxiety.
What the research suggests
- Systematic reviews and meta-analyses report reductions in perceived stress and serum cortisol versus placebo.
- Some trials also note improvements in sleep quality and fatigue.
- Benefits tend to be greater with longer use (8+ weeks) at moderate doses.
Reviewers caution that overall certainty is still low due to study variation, so treat ashwagandha as a complementary routine, not a cure.
How it is typically used
Common study doses are around 300–600 mg/day of root extract, usually with food. Start low, be consistent, and give it several weeks.
References
- NIH Office of Dietary Supplements — Ashwagandha fact sheet
- NCBI/PMC — Effects on Cortisol, Stress and Anxiety: Systematic Review & Meta-Analysis
- PubMed — Ashwagandha for anxiety and stress: RCT meta-analysis
Note: This article is for general information and reflects traditional use and published research. It is not medical advice. Consult a qualified professional before starting any herbal routine, especially if pregnant, nursing, or on medication.