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Carbohydrate Absorption

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

Summary of Carbohydrate Absorption

Primary Information, Benefits, Effects, and Important Facts

Scientific Information on Carbohydrate Absorption

Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect carbohydrate absorption
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 Psyllium Minor - See study
Supplementation of 12g psyllium husk with a test breakfast is able to reduce carbohydrate absorption by around 12% relative to control.
grade-d Green Tea Catechins Notable - See study
One study has found a 30% reduction in carb absorption when coingesting 4 g green tea extract.
grade-d Olive leaf extract Minor - See study
There appears to be a decrease in either the rate or overall amounts of carbohydrate absorption seen with olive leaf consumption
grade-d Sea Buckthorn Minor - See study
Carbohydrate absorption appears to be attenuated with oral ingestion of sea buckthorn berries alongside a meal, which is thought to be due to the fiber component.

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

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