Quick Navigation

Lean Mass

Your lean mass is your weight minus your fat mass. It includes your bones, organs, and water. Studies on muscle gain/loss usually measure lean mass (but try to minimize changes in hydration).

Research analysis led by .
Reviewed by
Examine.com Team
Last Updated:

Improve your health with the latest information on 400+ supplements and their effects on 600+ health outcomes.

By becoming an Examine Plus member, you'll have access to all of the latest nutrition research. Quickly and easily look up scientific research on over 400 supplements across over 600 different health goals, outcomes, conditions, and more.

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
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-a Minor 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.
grade-a Minor 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).
grade-b Minor 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.

Become an Examine Plus member to view this information.

You can currently view 3 supplements as a non-member — becoming a member will give you access to 37 total supplements related to Lean Mass.

Already a member? Login now to access.

grade-b  
grade-b  
grade-b  
grade-b  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-c  
grade-d  
grade-d  
grade-d  
grade-d  
grade-d  
grade-d  
grade-d  
grade-d  

Get access to the latest nutrition research summarized

By becoming an Examine Plus member, you'll have access to all of the latest nutrition research on over 400 supplements across over 600 different health goals, outcomes, conditions, and more.