Making the switch to high fiber foods will help lower your risk for diabetes. Try to eat only whole grains, they are packed with fiber that allows your body to digest foods without getting a spike in blood sugar which is what happens when you eat mostly refined carbs (white bread and any type of processed foods).
Take all of your medications that your doctor prescribes you. Follow the directions exactly, or you will not be getting the benefits of the treatment. If you have any side effects that you do not like call your doctor and they may be able to give you something else that agrees with your body better.
Watch out for trans-fats. Trans fats are found in any foods containing partially hydrogenated oils. These fats are dangerous for everybody, but diabetics are at extra risk. Trans fats cause increased amounts of fat around the waistline which has been linked to heart disease. They are also extremely high in calories and low in nutritional content.