Length of Sickness
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Human Effect Matrix
The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect length of sickness
| Grade | Level of Evidence [show legend] |
|---|---|
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Robust research conducted with repeated double-blind clinical trials |
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Multiple studies where at least two are double-blind and placebo controlled |
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Single double-blind study or multiple cohort studies |
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Uncontrolled or observational studies only |
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Level of Evidence
?
The amount of high quality evidence. The more
evidence, the more we can trust the results.
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Outcome |
Magnitude of effect
?
The direction and size of the supplement's impact on
each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
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Consistency of research results
?
Scientific research does not always agree. HIGH or
VERY HIGH means that most of the scientific research agrees.
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Notes |
|---|---|---|---|---|
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Notable
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Very High See all 6 studies |
Although a high variability exists, the meta-analysis has concluded a 1.4-day reduction in sickness when it occurs relative to placebo. As echinacea is also a comparator for sickness, this reduction in notable
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- | Very High See all 4 studies |
Despite tenuous evidence suggesting a reduction in the frequency of sickness with colostrum, when sickness does occur there is no benefit of colostrum in reducing how long it occurs for.
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Notable
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- See study |
Seems to be one of the few compounds able to reduce the length of sickness when taken at the first signs of sickness. The lack of a reference drug to compare Andrographis limits the strength of the evidence
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