If you are taking pills for diabetes control now, some of the foods which lower blood glucose levels can compound the blood glucose lowering effects of medications to the extent that you might put yourself at risk by consuming the foods without adjusting your medications appropriately.
Use common sense and be sure you fully understand your medications and that your doctor who prescribes them for you fully understands you and your goals with respect to your plans to change your diet.
Some foods and/or spices or herbs can have adverse reactions with medications in unpredictable ways - approach anything new with caution and care.