Article: Echinacea cut common cold's impact in half.(Infectious Diseases)

Users of echinacea supplements in clinical trials reduced their odds of developing the common cold by more than half, according to findings from a meta-analysis of 14 published, randomized, placebo-controlled trials.

When patients in the trials caught a cold, those who used echinacea supplements also cut a mean of 1.4 days from the duration of their illness, compared with patients who received a placebo.

The trials involved preparations of the three most common Echinacea species (E. purpurea, E. augustifolia, and E. pallida) either alone or in combination with other supplements.

Although agencies such as the World Health Organization, the Canadian Natural Health ...

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