Ashwagandha (Withania somnifera) extract

Also known as: withania somnifera, indian ginseng, ksm-66, sensoril

Adaptogenic herb (Withania somnifera) used in Ayurvedic medicine for thousands of years. Helps body manage stress by modulating cortisol and supporting adrenal function.

100ProductsNumber of supplements in our database that contain this ingredient.

3Health ClaimsNumber of researched health benefits associated with this ingredient, rated by evidence strength (strong/moderate/weak).

4Side EffectsNumber of documented side effects from clinical literature and adverse event reports.

Health Claims & Evidence

strongReduces stress and anxiety

Multiple RCTs show cortisol reduction and improved stress/anxiety scores, primarily with standardized extracts (KSM-66, Sensoril) at 300-600mg/day.

4 studies on PubMed

Related studies:Automatically retrieved from PubMed based on keyword matching. Some may not directly address the specific claim above.Does Ashwagandha supplementation have a beneficial effect on the management of anxiety and stress? A systematic review and meta-analysis of randomized controlled trials.Phytother Res (2022) · PMID 36017529 An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study.Medicine (Baltimore) (2019) · PMID 31517876 Ashwagandha (Withania somnifera) and Its Effects on Well-Being-A Review.Nutrients (2025) · PMID 40647248

moderateMay improve testosterone

Limited evidence for testosterone effects, primarily in stressed or subfertile men using KSM-66 extract. Results in healthy men are inconsistent.

2 studies on PubMed

Related studies:Automatically retrieved from PubMed based on keyword matching. Some may not directly address the specific claim above.An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study.Medicine (Baltimore) (2019) · PMID 31517876 A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania somnifera) in Aging, Overweight Males.Am J Mens Health (2019) · PMID 30854916

moderateSupports athletic performance

May improve VO2 max, strength, and recovery. Typically studied at 300-600mg/day of standardized root extract (KSM-66 or equivalent).

0 studies on PubMed

Known Side Effects

drowsiness
upset stomach
thyroid hormone changes
not safe during pregnancy

Drug Interactions

thyroid medications
immunosuppressants
sedatives
blood sugar medications

Always consult your healthcare provider before combining supplements with medications.

Health Claims & Evidence

Known Side Effects

Drug Interactions

Products Containing Ashwagandha (Withania somnifera) extract (100)