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Oxygen Uptake

Oxygen uptake (not to be confused with VO2 max) is the amount of oxygen taken up during exercise, and is known to reflect overall energy expenditure during exercise.

Research analysis lead by Kamal Patel
All content reviewed by Examine.com Team. Published:
Last Updated:

Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect oxygen uptake
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 mo re 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.
grade-c Caffeine Minor - See study
Appears to be an increase in oxygen uptake with caffeine consumption, may be related to the increase in metabolic rate
grade-c Eleutherococcus senticosus Minor - See study
Limited evidence, but it is in support of an increase in oxygen consumption
grade-c Ginkgo biloba Minor - See study
In persons undergoing high altitude climbing, the reduced risk of AMD is associated with increased functional capacity of blood to carry oxygen.
grade-c Green Tea Catechins Minor - See study
An increase in oxygen uptake has been noted with green tea catechin ingestion
grade-c Branched Chain Amino Acids  
grade-c Coenzyme Q10  
grade-c Conjugated Linoleic Acid  
grade-c Ornithine  
grade-c Sodium Bicarbonate  
grade-c Trimethylglycine  
grade-d Garlic  

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

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