Organic Ashwagandha, 60 Capsules
Dr.
May be a fit for
- Adults seeking ashwagandha to support a calm stress response daily
- Individuals using organic ashwagandha to help maintain healthy cortisol balance
- Those supporting sustained energy levels with adaptogenic ashwagandha extract
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Dr. Mercola's Organic Ashwagandha delivers KSM-66® ashwagandha root extract, a concentrated full-spectrum form standardized to a high percentage of withanolides. It supports stress resilience, may help maintain healthy cortisol balance, and is formulated for adults seeking adaptogenic support for energy and mental clarity.
Why It's Worth Considering: The organic certification and use of root-only extract, rather than leaf or whole-plant blends, aligns with the most traditionally validated and studied form of ashwagandha.
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Product details
Who it may suit
May be a fit for
- Adults seeking ashwagandha to support a calm stress response daily
- Individuals using organic ashwagandha to help maintain healthy cortisol balance
- Those supporting sustained energy levels with adaptogenic ashwagandha extract
- Adults looking for organic-certified ashwagandha to support restful sleep
Considerations
- Autoimmune conditions (may stimulate immune activity)
- Hyperthyroidism (ashwagandha may increase thyroid hormones)
- Pregnancy and breastfeeding
- Taking sedatives or thyroid medications (additive effects)
Compatibility & interactions
Works Well With
Take Separately From
No significant interactions identified. Always consult your healthcare provider.
What to expect over time
Stress Response
Reduced cortisol reactivity to daily stressors
Sleep & Calm
Improved sleep quality and baseline anxiety reduction
Performance
Measurable strength and endurance gains
Full Adaptation
Sustained cortisol reduction of 20-30%
Based on clinical trials using KSM-66 and Sensoril ashwagandha extracts at 300-600mg/day.
Compare the options
Compare Ashwagandha Extracts
KSM-66 vs Sensoril vs Generic
| Feature | KSM-66 (root) | Sensoril (root+leaf) | Generic Extract |
|---|---|---|---|
| Withanolide % | 5% standardized | 10% standardized | 1.5-2.5% (varies) |
| Best For | Performance, testosterone, cortisol | Anxiety, sleep, relaxation | Budget option |
| Research | 22+ clinical trials | 11+ clinical trials | Limited |
| Quality Control | Patented, GMP certified | Patented, standardized | Varies widely |
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Explore the source sentiment summary
Ashwagandha shows genuine benefits for stress and anxiety but carries notable side effect risks for certain groups, making overall consensus mixed.
This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.
A few useful answers.
Research & further reading
More category questions
How long does ashwagandha take to work?
Most people notice reduced stress reactivity within 1-2 weeks. Sleep improvements by week 2-3. Full cortisol-lowering and performance benefits take 8-12 weeks of consistent daily use. It's an adaptogen — benefits compound over time, not a one-dose effect.
What is the difference between KSM-66 and Sensoril?
KSM-66 uses only the root and is standardized to 5% withanolides. It's better studied for performance, testosterone, and general stress. Sensoril uses root and leaf, standardized to 10% withanolides, and is more potent for anxiety and sleep. Both are clinically validated — KSM-66 for daytime, Sensoril for evening use.
Can ashwagandha increase testosterone?
Yes, in men with suboptimal levels. Clinical trials show KSM-66 at 600mg/day increased testosterone by 15-17% and improved sperm quality in infertile men. In men with already-normal testosterone, the effect is modest. It works primarily by reducing cortisol (which suppresses testosterone production).
Should I cycle ashwagandha?
There's no clinical evidence requiring cycling, but many practitioners recommend 8-12 weeks on, 2-4 weeks off to maintain sensitivity. If you notice the effects plateauing, a 2-week break can restore responsiveness. Some people take it continuously for years without issue.
Can I take ashwagandha with coffee?
Yes — they work through different mechanisms. Ashwagandha calms the stress response while caffeine increases alertness. Many people find the combination produces focused energy without jitteriness. Take ashwagandha with breakfast alongside your coffee.
Is ashwagandha safe for women?
Yes — ashwagandha is safe and beneficial for women. It reduces cortisol, improves thyroid function, supports fertility, and enhances sleep. It may mildly increase testosterone, which in women supports libido and energy without masculinizing effects. Avoid during pregnancy and breastfeeding.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.