Background Information
Ginseng is the root of the Araliaceous plant. Panax ginseng is the most popular species and has been used for centuries for practically every human malady including depression, loss of libido, dyspnea, fatigue, nausea, etc. More recently, various forms of ginseng are being touted as an ergogenic aid.

 Effects on Health
While positive effects of ginseng use have been reported, the research has not been uniformly sound from a methodological perspective. Research with humans is characterized by methodological and statistical shortcomings.

Low doses are generally regarded as safe. Large doses taken at bedtime may delay the onset of sleep.

Moderate amounts of garlic do not pose any health risk for normal, healthy individuals. Large amounts of garlic can produce heartburn, flatulence, and gastrointestinal problems. Allergies have also been reported.

 Effects on Performance
There are only a few published studies dealing with the influence of ginseng on physical performance in humans, and this research has yielded little evidence for the efficacy of ginseng. The lack of support for an ergogenic effect may reflect the absence of such an effect of this substance, or it may be due to inadequate research design. There remains a need for well-designed studies to address this issue. It is premature at this time to make any conclusions about the effect of ginseng on mental or physical performance.

 Recommendation
At the present time, ginseng is not included on the prohibited substances list of the IOC or the USOC. Athletes however must be aware that while ginseng per se is not prohibited, adulterated ginseng products may contain prohibited ingredients.