American Ginseng for Sports & FitnessSkip to the navigation
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.
Dosage & Side Effects
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.
Interactions with Supplements, Foods, & Other Compounds
Interactions with Medicines
Certain medicines interact with this supplement.
Replenish Depleted Nutrients
Reduce Side Effects
Potential Negative Interaction
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.
Last Review: 05-24-2015
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