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.
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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.