Ashwagandha Root Extract
Root Extract is a supplemental form of ashwagandha. Most common form; standardized for withanolide content. 10 studies on ashwagandha are available in our database. Learn how ashwagandha root extract compares to other forms.
Content reviewed by ZYNAVA Research Team · Last updated February 2026 · Editorial policy
What Is Ashwagandha Root Extract?
Root Extract is a supplemental form of ashwagandha. Most common form; standardized for withanolide content. Traditional root vs modern extracts. A plant used in Ayurvedic tradition; supplements use root and/or leaf extracts. Some extracts are standardized to withanolides.
How Ashwagandha Root Extract Compares
Traditional root vs modern extracts. Ashwagandha is also available as KSM-66, Sensoril, Shoden.
About Ashwagandha
A plant used in Ayurvedic tradition; supplements use root and/or leaf extracts.
Find Ashwagandha Root Extract Supplements
Compare ashwagandha root extract products and explore your options.
Other Ashwagandha Forms
Compare different forms of ashwagandha and explore your options:
Research on Ashwagandha
Our database contains 10 peer-reviewed studies on ashwagandha:
FAQ: Ashwagandha Root Extract
What is Ashwagandha Root Extract?
Root Extract is a supplemental form of ashwagandha. Most common form; standardized for withanolide content. Traditional root vs modern extracts. A plant used in Ayurvedic tradition; supplements use root and/or leaf extracts. Some extracts are standardized to withanolides.
How does Ashwagandha Root Extract compare to other forms?
Traditional root vs modern extracts. Ashwagandha is also available as KSM-66, Sensoril, Shoden.
What other forms of Ashwagandha are available?
Ashwagandha is also available as Ashwagandha KSM-66, Ashwagandha Sensoril, Ashwagandha Shoden. The best form depends on individual absorption, tolerance, and specific needs.
Natural Food Sources of Ashwagandha
Before considering supplementation, it is worth exploring dietary sources of ashwagandha. Whole foods provide nutrients in their natural matrix alongside fiber, enzymes, and other beneficial compounds that can enhance absorption and utilization.
- Ashwagandha root — Traditionally prepared as a powder (churna) mixed into warm milk with honey
- Ashwagandha tea — Dried root can be brewed as a decoction — traditionally simmered for 15-20 minutes
Dietary Context
Ashwagandha (Withania somnifera) is not a common food ingredient in Western diets but has been used for over 3,000 years in Ayurvedic medicine. The root is the most commonly used part. In its native regions of India and North Africa, it grows as a small shrub. Unlike vitamins and minerals that are widely distributed in foods, ashwagandha's active compounds (withanolides) are unique to this plant.
Absorption: Food vs. Supplements
Withanolides, the active compounds in ashwagandha, are fat-soluble. Traditional preparations in warm milk (which contains fat) may enhance absorption. Modern standardized extracts are designed to provide consistent withanolide concentrations.
Practical Tips
- Traditional Ayurvedic preparation involves mixing ashwagandha powder in warm milk with a sweetener
- The herb has a distinctive bitter, earthy taste that is masked well in milk-based drinks
- Ashwagandha is not found in common Western foods — supplementation is the primary modern route
How to Take Ashwagandha Root Extract
Getting the most from ashwagandha root extract supplementation involves more than just choosing the right product. When and how you take it can significantly affect absorption and effectiveness.
Best time to take: Morning or evening, depending on the desired effect
With or Without Food
Best taken with food to improve absorption and reduce any potential stomach discomfort. Traditional Ayurvedic preparations use warm milk as a delivery vehicle.
How Often
Typically taken once or twice daily. Effects may take 4-8 weeks of consistent supplementation to fully manifest.
Practical Tips
- Morning dosing is common for energy and stress resilience during the day
- Evening dosing may support relaxation and sleep quality
- Traditional preparation with warm milk enhances absorption of fat-soluble withanolides
- Cycling (e.g., 8 weeks on, 2 weeks off) is sometimes recommended though not universally agreed upon
Important Interactions
- May interact with thyroid medications — monitor thyroid levels if supplementing
- May interact with immunosuppressant drugs
- May have additive effects with sedatives or anti-anxiety medications
This is not an exhaustive list of interactions. Always consult a healthcare provider or pharmacist about potential interactions with your specific medications and health conditions.
Where to Find Ashwagandha Root Extract Supplements
If you are considering ashwagandha root extract supplementation, choosing a quality product from a reputable retailer is an important step. Here are some trusted options where you can browse and compare ashwagandha root extract supplements.
How to Choose a Quality Ashwagandha Root Extract Supplement
- Look for Good Manufacturing Practice (GMP) certification on the label
- Check whether the product uses the specific form of the ingredient you are looking for
- Review customer feedback and ratings for real-world product experiences
- Consider the supplement form (capsule, powder, liquid, gummy) that best suits your preference
To explore supplements by ingredient or health goal, try our AI Supplement Advisor.
Research Highlights: Ashwagandha Root Extract
Scientific inquiry into ashwagandha root extract has produced 3 meta-analysiss, 1 observational study, 1 systematic review over the period 2020 to 2025. The following highlights are drawn from peer-reviewed publications in our research database. Study results reflect controlled conditions and may differ from real-world outcomes.
Ashwagandha for stress and anxiety
Reduces stress by 39%. Lowers cortisol levels. Improves sleep quality.
Source: View full study on PubMed
The effect of Withania somnifera (Ashwagandha) on mental health symptoms in individuals with mental disorders: systematic review and meta-analysis
A systematic review and meta-analysis on Ashwagandha's effect on mental health symptoms in individuals with mental disorders. Found evidence supporting the effectiveness of Ashwagandha in improving anxiety, depression, stress, and sleep quality symptoms. Concluded that future trials should replicate the anxiety finding in larger samples and further clarify its role in depression and insomnia treatment.
Safety of 12-Months Administration of Ashwagandha (Withania somnifera) Standardized Root Extract in Healthy Adults: A Prospective, Observational Study
A prospective, multi-center, observational clinical study (N=191) evaluating the long-term safety of Ashwagandha Root Extract (ARE) over 12 months. Found the extract to be safe with no clinically significant changes in liver enzymes (ALT/AST). Reported significant decreases in serum cortisol and significant increases in serum testosterone (free and total), along with enhanced health-related quality of life.
Ashwagandha (Withania somnifera) for the treatment and enhancement of mental and physical conditions: A systematic review of human trials
A systematic review of 41 human trials on Ashwagandha's effects on mental and physical conditions. Found the strongest evidence for therapeutic efficacy is the alleviation of stress and anxiety symptoms. Concluded that Ashwagandha has a potentially large array of therapeutic applications, but further research with robust designs is required due to significant heterogeneity and small sample sizes in existing studies.
Effects of Ashwagandha (Withania Somnifera) on stress and anxiety: A systematic review and meta-analysis
A systematic review and meta-analysis of 9 studies (558 patients) on the effects of Ashwagandha on stress and anxiety. Found significant reductions in perceived stress, anxiety, and serum cortisol levels compared to placebo. Doses ranged from 125–600 mg daily for 30–90 days, with both root-only and root-and-leaf formulations showing benefits.
Source: View full study on Explore
The research summaries above are based on published peer-reviewed studies and are provided for informational purposes only. Study findings may not apply to all individuals, and the presence of a study summary does not constitute an endorsement of ashwagandha root extract for any specific health condition. Always consult a qualified healthcare professional before making decisions based on research findings.
Important Information
Allergens, Fillers, and Common Supplement Additives
Supplement products contain more than just active ingredients. The "Other Ingredients" section of a supplement label lists inactive components used in manufacturing, including fillers to bulk up capsules, binders to hold tablets together, lubricants to prevent ingredients from sticking to machinery, coatings for easier swallowing, and preservatives to extend shelf life. Common additives include magnesium stearate, silicon dioxide, cellulose, rice flour, and various forms of gelatin.
For individuals with food allergies or sensitivities, checking the other ingredients list is essential. Many supplements contain common allergens such as soy, dairy, wheat, shellfish, or tree nuts — either as active ingredients or as processing aids. Gelatin capsules are derived from animal sources and are not suitable for vegetarians or vegans. When using ZYNAVA, compare allergen statements on listings and always verify details on the product label before you buy.
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