Synopsis

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

Echinacea, particularly species such as Echinacea purpurea and Echinacea angustifolia, has a long history of traditional use by Native American tribes and in European herbal medicine for the prevention and treatment of colds and other respiratory infections. Traditionally, echinacea preparations—made from the roots, leaves, and flowers—were believed to stimulate the immune system and ward off infections.

In terms of scientific evidence, numerous studies and systematic reviews have examined the efficacy of echinacea for cold prevention. The results are mixed: some randomized controlled trials suggest a modest reduction in the risk of developing a cold or in the duration of cold symptoms, while others show no effect. Meta-analyses, such as the 2014 Cochrane review, have concluded that there is some evidence for a slight benefit in cold prevention, but methodological flaws and heterogeneity among studies limit confidence in these findings. Notably, the quality and composition of echinacea products vary widely, further complicating interpretation.

In summary, echinacea’s use for cold prevention is rooted primarily in traditional practice, with limited and inconsistent scientific support. Current guidelines generally do not recommend echinacea for cold prevention due to insufficient evidence of efficacy.

More about Echinacea (unspecified)
More about Colds (prevention)

Other ingredients used for Colds (prevention)

Other health conditions supported by Echinacea (unspecified)

Products containing Echinacea (unspecified)