Sports Research® Organic Ashwagandha – Adaptogen for Relaxation, Calm & Sleep Support – Made with Organic KSM-66® – 600 mg – Non-GMO Verified, Gluten-Free, Certified Vegan – 90 Veggie Capsules

Clinical trials typically use 300-600mg standardized root extract daily. Sports Research Organic Ashwagandha KSM-66 delivers 600mg KSM-66 per serving, which we classify as Therapeutic relative to that range.

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

Yes — USDA Organic, Non-GMO Verified. Third-party testing verifies ingredient identity and label accuracy.

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

KSM-66 ashwagandha has been studied in multiple clinical trials lasting 8-12 weeks with an excellent safety profile at 600mg daily. This product is USDA Organic and Non-GMO Verified, reducing exposure to pesticide residues. As with any adaptogen, consult your healthcare provider if you have thyroid conditions or autoimmune disorders.

Ashwagandha may increase thyroid hormone levels, so individuals taking levothyroxine or other thyroid medications should consult their doctor before use. This interaction is well-documented in case reports. Your provider may need to adjust your thyroid medication dose if you begin supplementing with ashwagandha.

Most people tolerate KSM-66 ashwagandha well at 600mg daily. Occasional side effects include mild drowsiness, stomach discomfort, or loose stools, particularly when taken on an empty stomach. These effects are uncommon and typically resolve by taking the capsules with food.

Ashwagandha is not recommended during pregnancy, as it has been traditionally classified as an abortifacient in Ayurvedic medicine. There is insufficient safety data for use during breastfeeding. Pregnant or nursing women should avoid this supplement unless directed by their healthcare provider.

Sports Research Organic Ashwagandha uses vegan capsules and is free from major allergens including gluten, soy, dairy, eggs, and nuts. It is USDA Organic and Non-GMO Verified. Those with nightshade sensitivities should note that ashwagandha belongs to the Solanaceae family.

The recommended dose is 600mg of KSM-66 ashwagandha per day, which matches the dose used in the majority of clinical trials. Take the capsules with a meal for best absorption and to minimize any chance of stomach discomfort.