Oxygen Uptake Research Analysis

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 [show legend]
	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

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.	Notes
Caffeine	Minor	- See study	Appears to be an increase in oxygen uptake with caffeine consumption, may be related to the increase in metabolic rate
Eleutherococcus senticosus	Minor	- See study	Limited evidence, but it is in support of an increase in oxygen consumption
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.
Green Tea Catechins	Minor	- See study	An increase in oxygen uptake has been noted with green tea catechin ingestion
Branched Chain Amino Acids
Coenzyme Q10
Conjugated Linoleic Acid
Ornithine
Sodium Bicarbonate
Trimethylglycine
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.