I dont have diabetes , my fasting glucose was always in the 98-103 range tho so it was something I added to lower it. my A1C never been above 5.6 either. I drop weight fast when I first start taking Metformin then it slowly subsides. Maybe water weight retention at first? I proactively try to limit my carbs intake and overall eat fairly clean. i gained some weight recently because I went to Italy and Greece for 3 weeks and ate like a cow, hence the reason I wanted to give Incinderine a shot. Yomhinbine HCL does feel weird but very tolerable for me.. cold sweats, and I enjoy HIIT fasted but with HCL I take the cardio slow, so reason I opted to try Incinderine over my usual. I didnt lose a pound and actually gained couple pounds since I started taking it, whether its "less fat, more muscle" ideology thats being passed around here, which in my case I doubt, I still got this product for me to lose pounds.