Also known as: withania somnifera, KSM-66, Sensoril
Latest evidence update: 2026-11-05
Strongest in Consistency (86). Held back by Recency (42).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Thousands of participants across the literature.
Studies agree on direction of effect.
Evidence base skews older; field may have moved on.
Recommended: 300-600mg daily
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Reduces stress and anxiety symptoms in adults with mild to moderate stress
Improves mood, emotional well-being, and happiness
Enhances recovery and reduces muscle soreness in athletes
Improves sleep quality
Supports cognitive function and memory in adults with mild cognitive impairment