Lean Mass
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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 lean mass.
| 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.
|
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.
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Notes |
|---|---|---|---|---|
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Minor
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Moderate See all 13 studies |
Some evidence that CLA can preserve lean mass during fat loss in an obese cohort of patients, but even in this subgroup the results are highly unreliable.
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Minor
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Very High See all 20 studies |
Does appear to have inherent lean mass building properties, but a large amount of research is confounded with water weight gains (difficult to assess potency).
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Minor
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Moderate See all 5 studies |
Colostrum, inherently due to being a dietary protein, appears to promote lean mass accrual. This is comparable to a similar dose of whey protein as the growth factors in colostrum do not appear to provide an additional benefit.
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