What is a good diet to prevent from becoming diabetic?

Low-calorie diet: 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.

Balanced diet,weight: A balanced diet, but more importantly being fit, and preventing obesity is key. Central obesity (belly) is especially bad. In general the average persons diet has too many carbs. If your diet is carb heavy, look to that as a potential area of change.

Balanced, w/ wt loss: If you are overweight (bmi >25i) a balanced diet that will allow you to lose 7-10% of your total body weight can significantly reduce your risk of developing type 2 diabetes.