It is also known to regenerate pancreatic cells that produce insulin, called beta cells. It is important for Type 2 diabetics to fully understand the correct way to check their blood glucose. It has been used in India for a long time in the treatment of diabetes, diabacore. Onion: I know there are many people including diabetics who do not like to eat onion. You can improve your body's insulin function or you can decrease your diabacore levels through diet. Blood glucose readings are not intended to verify how you feel, diabacore.