Along with cinnamon and bitter melon, neem leaf is one of the herbs which has multiple studies citing effectiveness for lowering blood sugar levels. A quick search online shows multiple mention of its use in other countries as a treatment for diabetes, after approval by governments for that purpose.

Neem leaf is not only cited as lowering blood sugar, but also for improving circulation, which may also be an issue with diabetics.

Now, the thing that seems to be prevalent in herbal medicine, is that the herbs that DO work to lower blood sugar are also the more risky ones to use. They have lower tolerances before they become toxic, and care is needed in administration. I could not find easily accessible information about the safety of neem leaf, nor could I find any info on whether it was safe for infants, or in pregnancy or for breastfeeding women.

Because I cannot find information on its safety (I am sure it exists, it just was not where I was looking), I cannot make any kind of recommendation other than extreme caution if this herb is used. In countries where it is approved for diabetes treatment, it can be used under a doctor’s care. In countries where it is not recognized, it may be difficult to persuade a doctor to assist you in the monitoring that is needed to safely use it.

The evidence of its efficacy is quite a bit more persuasive than with many other herbs, but you’ll need to do more research and make a decision for yourself.