Quick Navigation

HbA1c

HbA1c (glycated hemoglobin) is a biomarker of glucose metabolism — it reflects glucose levels over months. Higher HbA1c is associated with more disease progression and comorbidities in states of insulin resistance or diabetes.

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

πŸ“ Don't waste your time on outdated information: Get Examine Personalized for access to the latest research on 400+ supplements and their effects on 600+ health outcomes.

Already a member? Click here to log in.

Human Effect Matrix

Unlocked for Examine members

The Human Effect Matrix looks at human studies to tell you what supplements affect HbA1c.

Full details on all HbA1c supplements are available to Examine members.
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 - 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.
grade-a - 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
grade-b Strong 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.

Become an Examine member β€” free to try for 7 days β€” to view this information.

You can currently view 3 supplements as a non-member - becoming a member will give you access to 44 total supplements on hba1c.

Already a member? Log in now to access.

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

Become an Examine Personalized member to access the latest nutrition research on over 400 supplements across more than 600 different health goals, outcomes, conditions, and more.

Becoming an Examine subscriber unlocks the Human Effect Matrix for supplements, as well as all health topics on Examine.com. We summarize all the latest research so that you can make the best decisions for your health based on accurate and not up-to-date information.

Plus, you get a monthly summary of the latest research on the health topics you care about.