Try to avoid soda and other sugary drinks of you have diabetes. There are no health benefits from drinking these drinks and can in fact, cause your sugar levels to go higher. If you are going to drink juice, try to stick to ones that have no sugar in them.
If you are diagnosed as a diabetic it may be in your best interests to carry around a glucose gel. You simply never know when your blood sugars will jump, and consequently, when you might need a quick rush of sugar to your body. Keeping it handy can and will save your life.