HerbsAshwagandha

Withania somnifera preparations may influence stress-related and sleep-related outcomes

This narrative review of literature from 2015 to 2026 suggests that Withania somnifera (Ashwagandha) preparations may affect stress and sleep outcomes, based on preclinical and human studies. However, heterogeneity in extract composition and study design limits firm conclusions, and the overall strength of evidence varies across indications and products.

Last updated: Jul 7, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score32/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Nutraceutical Applications of Withania somnifera: The Scientific Knowledge for Rational Modern Use of the "Ayurvedic Adaptogen".

observational

Pandey S, Pant P, Corbioli G, Bonazzi E, Cisneros-Yupanqui M, Salmaso P, Dall'Acqua S · Foods (Basel, Switzerland) (2026)

Participants: N/A
Duration: N/A
Intervention: Withania somnifera (Ashwagandha) preparations (various extracts)
Outcome: Sleep-related outcomes (e.g., sleep quality, sleep onset, duration)
Effect Size: N/A
Population: Humans (general, including those with stress-related complaints) and preclinical models

Result:

PubMed: 42354160DOI: 10.3390/foods15122192

Mechanism Graph

Modulation of stress response pathways
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Influence on neuroprotective mechanisms
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Potential interaction with sleep-regulating systems
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Result: Possible improvement in stress and sleep outcomes

Limitations

  • ⚠Heterogeneity in extract composition across studies
  • ⚠Variability in study design limiting firm conclusions
  • ⚠Overall strength of evidence varies across indications and products

Frequently Asked Questions

What is Withania somnifera?▼

Withania somnifera, commonly known as Ashwagandha, is an herb used in Ayurvedic medicine and is included in nutraceuticals and dietary supplements.

Does Ashwagandha improve sleep?▼

The review suggests that Ashwagandha preparations may influence sleep-related outcomes, but evidence is limited by study heterogeneity and varying product compositions.

What are the main limitations of the research on Ashwagandha for sleep?▼

Key limitations include differences in extract composition across studies, inconsistent study designs, and varying strength of evidence for different indications.

Is Ashwagandha safe for long-term use?▼

The abstract notes that further well-designed trials are needed to clarify long-term safety, so current evidence is insufficient for definitive conclusions.

Products

Affiliate links coming soon. We only recommend products that match the doses and forms used in the cited research.

References

  1. 1.Pandey S, Pant P, Corbioli G, Bonazzi E, Cisneros-Yupanqui M, Salmaso P, Dall'Acqua S. "Nutraceutical Applications of Withania somnifera: The Scientific Knowledge for Rational Modern Use of the "Ayurvedic Adaptogen".." Foods (Basel, Switzerland), 2026. PMID: 42354160 DOI: 10.3390/foods15122192
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.