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Ingredient

Ashwagandha (Withania somnifera)

Promising

An adaptogenic herb with a small but consistent stress-marker literature.

How it works

May modulate the hypothalamic-pituitary-adrenal axis; specific KSM-66 and Sensoril extracts have been studied.

Evidence

A 60-day RCT in chronically stressed adults reported reduced subjective stress and serum cortisol at 600 mg/day (300 mg twice daily) of full-spectrum root extract.

Studies

  • Chandrasekhar et al., Indian J Psychol Med, 2012

    300 mg twice daily of full-spectrum Ashwagandha root extract reduced perceived stress and serum cortisol versus placebo over 60 days (n=64).

    PubMed 23439798

Top products

Sorted by effective monthly cost

Now Foods Ashwagandha 450 mg

Now Foods

Per serving
450 mg
Studied midpoint
600 mg · 2/day

Effective cost

$0.31/day·$9/month

Momentous Ashwagandha 600 mg

Momentous

Per serving
600 mg
Studied midpoint
600 mg · 1/day

Effective cost

$0.58/day·$18/month

Designs For Health Ashwagandha 300 mg

Designs For Health

Per serving
300 mg
Studied midpoint
600 mg · 2/day

Effective cost

$0.93/day·$28/month

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