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Exercise-Induced Immune Suppression

Intense exercise is known to be associated with an increased rate of sickness and reduced immune cell count, and supplementation is sometimes thought to reduce this rate of loss and thus preserve immunity. These effects are conditional on exercise being conducted.

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Human Effect Matrix

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The Human Effect Matrix looks at human studies to tell you what supplements affect Exercise-Induced Immune Suppression.

Full details on all Exercise-Induced Immune Suppression supplements are available to Examine members.
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.
Supplement 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-b - High See all 6 studies
More evidence suggests no significant effect than a possible protective effect, although the latter is possible
grade-c Minor - See study
Possible effects, but study assessed salivary IgA (biomarker of immunity) and not sickness rates; hard to assess potency.
grade-c Minor - See study
Although rates of sickness were not assessed, the alterations in the cytokine/immunoglobulin profile (increase in Immunoglobulin A, suppressing of IL-6 and IL-15) suggest less immunosuppression from exercise.

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