Optimizing KSM-66 Ashwagandha: Chronobiology and Clinical Dosage

Ashwagandha (Withania somnifera) has emerged as one of the most widely researched adaptogens in modern longevity science. Among the various formulations, KSM-66 stands out as a highly concentrated, standardized root extract. This profile evaluates the scientific literature surrounding its chronobiology and clinical dosing.

Standardized Dosing Models

In human clinical trials, the most common daily dosage for standardized root extract ranges from 600 mg to 1000 mg per day.

• Stress & Cortisol Mitigation: Studies suggest that 300 mg taken twice daily (totaling 600 mg) is highly effective at reducing subjective stress scores and serum cortisol.
• Athletic Performance & Vo2 Max: Higher dosages of up to 1000 mg per day have been utilized in athletic cohorts to measure improvements in aerobic capacity and recovery.

Chronobiology: Morning vs. Evening

Understanding the biological half-life of withanolides—the active constituents of Ashwagandha—helps optimize scheduling:

1. Morning Intake: Best for general daytime anxiety reduction and maintaining a balanced stress response throughout the work day.
2. Evening Intake: Best for supporting sleep architecture and downregulating HPA-axis activation before bedtime.