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Echinacea Fails to Prevent or Treat Colds
Federal study finds echinacea plant extracts offer no advantage over placebo in preventing or easing cold symptoms. 399 healthy adults were exposed to cold virus after taking echinacea or dummy treatment. infection rates and symptoms were similar in all groups. Researchers note prior mixed findings and emphasize cautious interpretation amid ongoing debate.
MENTIONED IN THIS ARTICLE
Ronald Turner
University of Virginia School of Medicine
New England Journal of Medicine
The
National Center For Complementary and Alternative Medicine
Federal
National Institutes of Health
Turner
Wallace Sampson
Stanford
Jacqueline Larma