There is another type of plant for diabetic which my mum planted in the garden. None in our family had history of diabetes but we sort of planted it to give away. It's not bitter, it's minty, can been eaten raw like salad green. We have recommended to many ppl and all had positive results. Eat today, next morning test show reduced bloody sugar level. I'm not kidding. Even those who were dependent on medication replaced it with the daily consumption of this leaf.
The bitter ones I think it's called Misai Kucing.