Subjective Well-Being
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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 subjective well-being
| 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.
|
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.
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Notes |
|---|---|---|---|---|
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Notable
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Very High See all 4 studies |
The increase in well being appears to be quite large, but secondary to reducing anxiety. At least one study has noted that, in healthy persons subject to a minor stressor (testing) that kava enhanced cheerfulness
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Notable
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Very High See all 4 studies |
Increases in subjective well being and contentment in fatigued or stressed individuals appears to be greater than other supplements.
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Minor
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Moderate See all 11 studies |
The influence of creatine on well being and general happiness is usually dependent on it treating a disease state; there does not appear to be a per se benefit to well being.
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