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American Ginseng for Sports & Fitness

Why Use

American Ginseng

Why Do Athletes Use It?*

Some athletes say that American ginseng helps reduce fatigue.

What Do the Advocates Say?*

There is little research on the effect of American ginseng (Panax quinquefolius) on exercise. Theoretically, American ginseng increases cortisol (a steroid hormone found naturally in the body) output, which suggests that it should be able to increase athletic performance; however, there is no human research to show this to be the case.

Historically, it has been used to help people who are fatigued feel less lethargic. The energizing effects of American ginseng only last while it is in your system. If you are consistently feeling tired, it’s best to pinpoint the reason for your fatigue.

*Athletes and fitness advocates may claim benefits for this supplement based on their personal or professional experience. These are individual opinions and testimonials that may or may not be supported by controlled clinical studies or published scientific articles.

Dosage & Side Effects

American Ginseng

How Much Is Usually Taken by Athletes?

An extract of American ginseng was found ineffective at improving endurance exercise performance in untrained people after one week’s supplementation in a double-blind study.1

Standardized extracts of American ginseng, unlike Asian ginseng, are not available. However, dried root powder, 1 to 3 grams per day in capsule or tablet form, can be used.2 Some herbalists also recommend 3 to 5 ml of tincture three times per day.

Side Effects

Occasional cases of insomnia or agitation have been reported with the use of American ginseng. These conditions are more likely, however, when caffeine-containing foods and beverages are also being consumed.3

Interactions with Supplements, Foods, & Other Compounds

Conditions such as insomnia or agitation are more likely to occur when caffeine-containing foods and beverages are being consumed along with American ginseng.4

Interactions with Medicines

Certain medicines interact with this supplement.

Types of interactions: Beneficial Adverse Check

Replenish Depleted Nutrients

  • none

Reduce Side Effects

  • none

Support Medicine

  • none

Reduces Effectiveness

  • none

Potential Negative Interaction

  • Warfarin

    In a study of healthy human volunteers, supplementing with American ginseng reduced warfarin's anticoagulant effect, apparently by stimulating the body to accelerate the metabolism of warfarin. People taking warfarin should not take American ginseng, unless supervised by a doctor.

Explanation Required

  • none

More Resources

American Ginseng


See a list of books, periodicals, and other resources for this and related topics.

PeaceHealth endeavors to provide comprehensive health care information, however some topics in this database describe services and procedures not offered by our providers or within our facilities because they do not comply with, nor are they condoned by, the ethics policies of our organization.