Ashwagandha
Withania somnifera
Ashwagandha is a highly revered adaptogenic shrub native to the dry subtropical regions of India and the Himalayas. It modulates the physiological stress response pathways through cortisol regulation and nervous system balancing.
Core Educational Takeaways
- ✓Slashes serum cortisol levels by up to 27.9%
- ✓Attenuates symptoms of social and general anxiety
- ✓Supports deeper slow-wave non-REM sleep cycles
- ✓Enhances physical stamina and overall muscle recovery
Evidence Summary
Anxiety & Stress Mitigation
Current human studies suggest strong support for this benefit, backed by 12+ Human RCTs.
Sleep Quality Index Improvement
Current human studies suggest emerging support, observed across 6 Human RCTs.
Muscle Endurance / Vo2 Max
Current human studies suggest emerging support, observed across 4 Human RCTs.
Understanding the Mechanism
Suppresses Corticotropin-Releasing Hormone (CRH) synthesis inside the hypothalamus.
Mimics inhibitory neurotransmitter GABA, activating soothing parasympathetic signals.
Dampens stress-induced heat shock protein Hsp70 expression inside cellular walls.
Clinical Dosage Observations
300 mg to 600 mg daily of high-concentration standardized root extract (e.g., KSM-66, standardized to >5% withanolides). Take with meals containing healthy fats to improve overall gut assimilation.
Safety & Precautions
⚠️ Reported Side Effects
- Mild gastrointestinal discomfort if taken in high fasted doses
- Mild somnolence (drowsiness) if taken during daytime hours
🚫 Potential Interactions
- Thyroid hormones: May amplify circulating thyroid outputs
- Sedatives & GABAergics: May potentiate overall sedative efficacy
Frequently Asked Questions
How long does it take for Ashwagandha to lower stress?▼
Should I cycle Ashwagandha?▼
⚠️ General Disclaimer
HimZen does not provide medical advice. This ingredient profile is for educational purposes based on publicly available research. Always consult a physician before using any new supplement.