American Ginseng

American Ginseng is an adaptogenic root known for its potential to reduce blood glucose levels, modulate immune function, & improve cognitive performance.

metabolicimmunecognitiveadaptogen

Evidence last reviewed: 05 Apr 2026

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Who should avoid this

•pregnant or breastfeeding individuals
•those with hormone-sensitive conditions
•people on blood sugar medications

Your fit analysis

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Evidence

4 records

4 recordsBest grade:Moderate

Biomarkers

Blood GlucoseCognitive FunctionImmune Function

The evidence for American Ginseng's effects is mixed, with some studies suggesting benefits for immune modulation and cognitive function, but overall quality is low. Notably, it shows moderate evidence for reducing fatigue in cancer patients. More robust research is needed to confirm its efficacy across different populations.

cancer-related fatigue

adults undergoing cancer treatment · Systematic review

Moderate

American ginseng significantly reduced fatigue in adults undergoing cancer treatment.

Dose: 2000 mgDuration: up to 8 weeks

Citation: Karmazyn et al. (2011). Therapeutic potential of ginseng in the management of cardiovascular disorders. Thrombosis Research.

immune function

general population · Systematic review

Low

American ginseng may modulate immune function, though evidence is limited.

Dose: 400 mg

Citation: Nahas et al. (2011). Complementary and alternative medicine for prevention and treatment of the common cold. Journal of Pharmaceutical Sciences.

blood glucose control

patients with diabetes · Systematic review

Low

American ginseng showed potential for glycemic control in diabetes management.

Dose: 400 mg

Citation: Yeh et al. (2003). Systematic review of herbs and dietary supplements for glycemic control in diabetes. Expert Opinion on Investigational Drugs.

cognitive function

adults · Review

Low

American ginseng extract may improve neurocognitive function.

Dose: 400 mgForm: Extract

Citation: Bell et al. (2026). Effects of American ginseng (Panax quinquefolius) extract on human neurocognitive function: a review. Journal of Medicinal Food.

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Forms & usage▾

How to take it

Take 200-400 mg of American Ginseng extract daily, preferably in the morning.

Capsule

Commonly used for standardized dosing.

Powder

Can be mixed with liquids or foods.

Extract

Concentrated form for higher potency.

My notes▾