Thorne
KSM-66 Ashwagandha (Thorne)
Where to Buy
About This Product
Thorne's KSM-66 Ashwagandha provides 300 mg per capsule of the most extensively studied ashwagandha root extract available. KSM-66 is produced through a proprietary extraction process that maintains the natural balance of active compounds found in the root, with a full-spectrum profile standardized to 5% withanolides. Over 24 clinical trials have been conducted specifically on KSM-66, making it the most evidence-backed ashwagandha extract on the market. Thorne's formulation is free from gluten, dairy, soy, and artificial additives, and undergoes four rounds of purity testing.
Why This Is Great for Thyroid Patients
Ashwagandha is one of the most researched adaptogens for thyroid health. A landmark 2018 study published in the Journal of Alternative and Complementary Medicine showed that KSM-66 ashwagandha significantly normalized TSH and improved T3 and T4 levels in subclinical hypothyroid patients over 8 weeks. Beyond direct thyroid effects, ashwagandha lowers cortisol — elevated cortisol suppresses TSH and blocks T4-to-T3 conversion, creating a vicious cycle for thyroid patients under stress. It also supports better sleep, reduced anxiety, and improved energy, addressing the symptom burden that makes hypothyroidism so debilitating.
Key Features
- KSM-66 Ashwagandha root extract 300mg
Selection Criteria
- Full-spectrum root extract
- Clinically studied (KSM-66)
- NSF Certified
- Supports cortisol regulation
Evidence Level
A growing body of research supports benefits for thyroid patients. More studies are underway.