Do not know about diabetes being cured........but my eyesight never got better after my gallbladder surgery. Still nearsighted.
I would think that if having your gallbladder out cured diabetes, there would be a run on gallbladder removal surgery.
Don't run and have your gallbladder removed! I know several people with diabetes and no gallbladder, many, in fact developed the diabetes AFTER gallbladder removal.