Hi, started low carb 5 months ago, with good results, but find it difficult to get below 60-70 grams daily (I miss oven chips so much)
back in Feb, an Indian friend suggested bitter melon, but as I hate vegetables, I bought the capsules (karelobetic). I found they had an effect.........my BG went up to about 8 after a meal with 30-40 grams of carbs, instead of 10 or 11.
I've explored the literature on this, and now taking lots of supplements, including Gymnema, fenugreek, Ivy Gourd, Pterocarpus, Turmeric, mulberry. Also taking resistant starch, FOS, prebiotics. I think these all work OK in combination.
I agree with everyone who says that herbs alone won't work, but combined with low-carbing, I feel is worth a try for some people.
Also, may have to try fairly long term, as any potential beta cell regeneration will be minor and take a while.
My perspective is from someone diabetic for 17 years who was close to going on insulin. I suspect my beta cell function was down to about 20% of normal, with huge insulin resistance as well. I think the supplements are helping a little with both these things.
Some of the herbs undoubtedly just delay stomach emptying and how long it takes glucose to enter the bloodstream, but I'm convinced some are helping my insulin work better. When my BG goes above 7.7 (the upper limit I aim for, following Jenny Ruhl, diabetes 101), it goes less high, but for slightly longer, but I have satisfied myself that the "area under the curve" is reduced, so doing myself less damage.
I plan to continue, despite the expense, and then stop all supplements at some point, keep low carbing, and see if things deteriorate.