Echinacea
Foundation
The cold remedy herb; pooled trials show a small reduction in cold incidence and little effect on duration.
What the evidence says
Meta-analyses find a modest prevention effect and inconsistent treatment effect, with big product variation.
What studies used
Trials commonly use 300-500 mg extract 2-3 times daily at onset.. At the first sign of a cold, for up to 10 days..
Reported from published studies and product labelling — a record of what was used in research, not a recommendation. What is right for you is a conversation with a clinician.
Watch out for
- Allergy to daisy-family plants
- Autoimmune conditions
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