It is one of the dozens (or maybe hundreds) of traditionals that was used to provide some benefit to diabetics before medications came along

Like all the others it does provide some limited benefit

First thing to "know" - if you took every single one of the traditionals all at the same time they would not work as well as a single 500mg tablet of Metformin

If they worked diabetes would have been cured 2 centuries ago and drugs would never have been invented

That doesn't mean they are useless but simply you have to temper your expectation

If you lose weight (if needed), stick to a diabetes friendly diet, get your exercise, drink enough water AND add a few traditionals/supplements they can be valuable as part of your overall program

But if you expect to pop some capsule or make some tea and stop using meds you will be very disappointed