Evidence supporting the use of: Ginseng
For the health condition: Colds (general)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Ginseng, particularly Panax ginseng and North American ginseng (Panax quinquefolius), has been traditionally used in many cultures to support immune function and combat illnesses like the common cold. In recent years, there has been growing scientific interest in its efficacy for preventing and mitigating cold symptoms. Several randomized controlled trials and meta-analyses have evaluated the immunomodulatory effects of ginseng extracts, especially a proprietary extract of North American ginseng called CVT-E002 (commercially known as Cold-FX). Some studies have demonstrated a modest reduction in the incidence, duration, and severity of colds among participants taking ginseng extract compared to placebo. The proposed mechanisms involve enhancement of both innate and adaptive immune responses, as well as antiviral properties.

However, results are mixed, and not all studies consistently show significant benefits. The overall quality of evidence is moderate, with some trials limited by small sample sizes or potential bias. Systematic reviews generally conclude that ginseng may offer a small protective effect against colds, but emphasize the need for more rigorous research. Side effects are usually mild, but ginseng can interact with certain medications. In summary, ginseng is supported by both traditional use and a moderate level of scientific evidence for cold prevention, though it should not replace established preventive measures like hand hygiene or vaccination.

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Other ingredients used for Colds (general)

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