HbA1c
Get the latest information on 400+ supplements and their effects on 500+ health outcomes.
By becoming an Examine Plus member, you'll have access to all of the latest nutrition research. Quickly and easy look up evidence on over 400 supplements across over 500 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 hba1c.
| 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
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The amount of high quality evidence. The more
evidence, the more we can trust the results.
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Supplement |
Magnitude of effect
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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.
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Consistency of research results
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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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- | Very High See all 18 studies |
Although sporadic evidence suggest improvements in HbA1c in diabetics, the entirety of the evidence does not support a reliable and significant improvement in diabetic persons.
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- | Moderate See all 10 studies |
Although the majority of evidence suggests absolutely no influence on HbA1c, reductions have been reported and a lone case has noted a clinically irrelevant increase of HbA1c (secondary to the increase in glucose). Practically, there is unlikely to be any large changes
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Strong
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Very High See all 3 studies |
The reduction of HbA1c associated with berberine, according to a meta-analysis of diabetics using 1,000-1,500mg berberine daily, was −0.72% (95% CI −0.97 to −0.47) more than placebo. This reduction appears to be one of the more significant reductions associated with dietary supplements.
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By becoming an Examine Plus member, you'll have access to all of the latest nutrition research on over 300 supplements across over 500 different health goals, outcomes, conditions, and more.
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