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Severity of Sickness

Research analysis led by Kamal Patel.
All content reviewed by the Examine.com Team. Published: Jun 28, 2017
Last Updated:

Summary of Severity of Sickness

Primary Information, Benefits, Effects, and Important Facts

Scientific Information on Severity 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 severity of sickness
Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
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.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-c Notable - See study
Seems to have more efficacy against nasal, ear, and throat symptoms of sickness. Lack of evidence and comparisons to reference drugs limits strong evidence
grade-c Minor - See study
Despite the potent efficacy in reducing the occurrence of sickness, the actual severity of symptoms is only modestly reduced with garlic.
grade-c Minor - See study
In children with upper respiratory tract infections (URTIs), supplementation is effective in reducing symptom severity.

All comparative evidence is now gathered in our ​A-to-Z Supplement Reference.

The evidence for each separate supplement is still freely available ​here.

grade-c