First of all, let me commend you about thinking about your diet before becoming a diabetic.
Secondly, the diabetic diet
basically consists of minimizing simple carbs
and fats and eating lots of fruits and vegetables. See the ada website for more: http://www.Diabetes
.Org/food-and-fitness/food/what-can-i-eat/making-healthy-food-choices.Html. Ideally will be to learn how to count carbohydrates.
Answer assisted by Emily Lu, Medical Student