Ashwagandha
Ashwagandha (Withania somnifera) is an adaptogenic herb traditionally used for stress. Several small randomized trials report modest reductions in perceived stress, anxiety, and cortisol, with some signal for improved sleep, though studies are short, small, and industry-funded. It is generally well tolerated, but rare cases of liver injury have been reported and it may interact with thyroid and sedative medications.
Too little may be associated with
Less stress relief.
Too much may be associated with
Drowsiness, GI upset; thyroid and liver cautions.
Informational only — not medical advice.
Where to buy
Popular Ashwagandha products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Books (1)
Research (5)
- Ashwagandha Root Extract Mitigates Fibromyalgia-like Symptoms via Neurochemical and Histological Modulation in Mice Hasanyn et al. (2025)
- A Standardized Withania somnifera (Linn.) Root Extract with Piperine Alleviates the Symptoms of Anxiety and Depression by Increasing Serotonin Levels: A Double-Blind, Randomized, Placebo-Controlled Study Majeed et al. (2024)
- A standardized Ashwagandha root extract alleviates stress, anxiety, and improves quality of life in healthy adults by modulating stress hormones: Results from a randomized, double-blind, placebo-controlled study Majeed et al. (2023)
- Interventions for generalized anxiety disorder Byrne (2023)
- Hydroalcoholic Extract of Ashwagandha Improves Sleep by Modulating GABA/Histamine Receptors and EEG Slow-Wave Pattern in In Vitro - In Vivo Experimental Models Murthy et al. (2022)
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