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Jarrow Formulas Ashwagandha 300mg — view 1 of 5
Jarrow Formulas

Jarrow Formulas Ashwagandha Capsules, 300 mg Supplement Supports Normalized Resistance to Mental and Physical Stress, 120 Veggie Capsules, 60 Day Supply

4.5· 1,933 Amazon reviews
$17.99$17.09with Subscribe & Save

$0.30/serving

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Price verified Apr 22, 2026

Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use

Our verdict

300mg (5% withanolides), 2 caps = 600mg of KSM-66 Ashwagandha Root Extract per veggie capsule from Jarrow Formulas. Best for stress and cortisol reduction.

Third-Party TestedVeganGluten-freeNon-GMOVeggie Capsule

Why we recommend this

Uses the gold-standard KSM-66 extract at the full clinical dose of 600mg. Jarrow Formulas is a trusted brand with over 45 years in the supplement industry.

Check for interactions

Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.

Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.

What to watch out for

Higher price point than generic root powder extracts.

Dose & form

Serving
300mg (5% withanolides), 2 caps = 600mg
Form
Veggie Capsule
Clinical range
300-600mg standardized root extract daily
Dose adequacy
Therapeutic
Supply
60 servings · $0.30/serving
UPC
790011220145

Who it's best for

Stress and cortisol reduction

Who should skip it

Those wanting a single-capsule full dose.

Pros

  • Gold-standard KSM-66 extract
  • Full clinical dose (600mg from 2 caps)
  • 45+ year trusted brand
  • 5% withanolide standardization

Cons

  • Requires 2 capsules for full dose
  • Higher price than generic powders

What customers say

4.5★ across 1,933 Amazon reviews. The most common questions from shoppers: jarrow formulas ashwagandha safe to take daily, i take jarrow ashwagandha with other medications, and jarrow formulas ashwagandha safe during pregnancy. Full answers in the FAQ below.

Frequently Asked Questions

What is the clinical dose for KSM-66 Ashwagandha Root Extract?

Clinical trials typically use 300-600mg standardized root extract daily. Jarrow Formulas Ashwagandha 300mg delivers 300mg (5% withanolides), 2 caps = 600mg, which we classify as Therapeutic relative to that range.

How does Jarrow Formulas Ashwagandha 300mg compare to similar Veggie Capsule?

See the "Also consider" section below for two alternatives. Choose based on form preference (Veggie Capsule vs alternatives), dose adequacy, and third-party testing.

Is Jarrow Formulas Ashwagandha 300mg third-party tested?

Yes — Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.

Does this work with Amazon Subscribe & Save?

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Is Jarrow Formulas Ashwagandha safe to take daily?

Jarrow Formulas Ashwagandha using KSM-66 extract has been studied in clinical trials lasting up to 12 weeks with daily use. It is generally well-tolerated, though mild GI upset or drowsiness may occur in some individuals. Consult your doctor if you have autoimmune conditions or are pregnant.

Can I take Jarrow Ashwagandha with other medications?

Ashwagandha may interact with thyroid medications, immunosuppressants, and sedatives. If you are taking prescription medications, consult your healthcare provider before adding this supplement. KSM-66 has been studied alongside standard therapies in some trials without adverse interactions.

Is Jarrow Formulas Ashwagandha safe during pregnancy?

Ashwagandha is not recommended during pregnancy as it may have uterine-stimulating properties. Jarrow Formulas recommends consulting a healthcare professional before use during pregnancy or nursing. There are no clinical trials evaluating ashwagandha safety in pregnant women.

Are there side effects from Jarrow Formulas Ashwagandha?

The most commonly reported side effects are mild drowsiness, stomach upset, and diarrhea. These typically resolve within a few days of consistent use. KSM-66 extract has a strong safety profile in published clinical trials at the recommended 600mg daily dose.

Does Jarrow Ashwagandha contain heavy metals?

Jarrow Formulas conducts third-party testing on their products including heavy metal screening. Ashwagandha is a root crop that can accumulate heavy metals from soil, making third-party testing especially important. Check Jarrow Formulas website for current certificates of analysis.

How many Jarrow Ashwagandha capsules should I take per day?

The recommended dose is 1-2 capsules daily, providing 300-600mg of KSM-66 extract. Most clinical trials used 600mg daily (2 capsules). Start with 1 capsule and increase to 2 if well-tolerated after one week.

Also consider

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As an Amazon Associate, we earn from qualifying purchases. Some links below are affiliate links — this doesn't affect our editorial independence or product ratings. How we evaluate products

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer