Echinacea flunks another test

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Echinacea flunks another test.

A randomized controlled clinical trial has found no evidence that taking

echinacea will modify the symptoms or duration of the common cold. The trial

involved more than 700 patients, ages 12 to 80, who received either no pills,

placebo pills, echinacea pills without being told what they were, or echinacea

pills that were identified as such. The study found no significant difference in

outcome between echinacea and placebo treatment. [barrett B. and others.

Echinacea for treating the common cold. A randomized trial. ls of Internal

Medicine 153:769-777, 2010]

http://www.ncbi.nlm.nih.gov/pubmed/21173411