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Banaba Leaf

Lagerstroemia, also known as Banaba, is a plant whose leaves have been used for anti-diabetic purposes. It contains a variety of molecules such as corosolic acid which may confer benefit to glucose control.

Our evidence-based analysis on banaba leaf features 28 unique references to scientific papers.

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Summary of Banaba Leaf

Primary information, health benefits, side effects, usage, and other important details

Lagerstroemia is the species of plant commonly known as Banaba. It is a herb with a blend of compounds that, holistically, seem to be catered towards being anti-diabetic in nature.

It can inhibit uptake (digestion and absorption) of carbohydrates to a degree, and can also aid in their deposition into cells from the blood stream (resulting in a reduction in blood sugar).

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How to Take

Medical Disclaimer

Recommended dosage, active amounts, other details

An oral supplement of 3,000mg of the leaf extract from Banaba appears to be used with efficacy. Other Banaba supplements may have concentrated supplements which increase the corosolic acid content, in which a 2:1 extract of 1,500mg would be equivalent to the 3,000mg leaf extract.

Although the above dose is currently recommended, it is not known if this is the optimal dose or not. Furthermore, it is not known whether or not this supplement needs to be taken with meals (although it is recommended out of prudency for the purposes of helping glucose tolerance to take it with meals).

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Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what effects banaba leaf has on your body, and how strong these effects are.
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.
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
grade-d Notable - See study
The reduction in blood glucose appeared to range from 20-30%, which is more than usually seen with dietary supplements.

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Things to Note

Is a Form Of

Primary Function:

Also Known As

Crape Myrtle, Crepe Myrtle, Lagerstroemia, Banaba

Do Not Confuse With

Banana (fruit)

  • Banaba contains Xanthine oxidase inhibitors, and may interact with caffeine (increasing efficacy)

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Click here to see all 28 references.