Evidence supporting the use of: Echinacea purpurea
For the health condition: Infection

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Echinacea purpurea, commonly known as purple coneflower, has been traditionally used by Native Americans and later by Europeans as a remedy for various infections, particularly those affecting the respiratory tract. In modern times, it is one of the most popular herbal supplements for supporting immune function and preventing or treating infections such as the common cold. Scientific interest in echinacea has led to numerous clinical trials and systematic reviews.

While laboratory studies have demonstrated that echinacea extracts can stimulate certain aspects of the immune system, including increasing the activity of white blood cells and production of cytokines, the clinical evidence for its efficacy in treating infections is mixed. Some randomized controlled trials suggest a modest reduction in the incidence and duration of the common cold, but others find no significant benefit. Meta-analyses generally conclude that, if there is an effect, it is small and not consistent across all studies. Variability in the plant species, preparation methods, and dosages used in research further complicates interpretation.

Overall, Echinacea purpurea is used to support or treat infections based on both traditional use and some scientific evidence, but the scientific support is limited and inconsistent. It is generally considered safe for short-term use, but more rigorous and standardized research is needed to draw definitive conclusions about its effectiveness for treating infections.

More about echinacea purpurea
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licorice root
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