I'm 41 and developed (type 1) diabetes at age 17.
In case you don't know:
Type 1 is Insulin Dependant - You can't use pills and diet alone (portion control), you must use insulin.
In Type 2 diabetes, your body makes insulin but is having a hard time using it. I'm not sure how they treat type 2 in a child. (pills, or just in the diet alone?)
I don't have a insulin pump, but I use the same type insulins which allows me to Carb Count, thereby allowing me to eat as much as I want - which is what CFers need.
Balanced meals, and exercise are important to level blood sugars. With a balanced meal you would eat a balance of Proteins, Carbs and Fat. Carbs raise the blood sugar first, then the proteins kick in, then the fats.
With the Carb Counting insulins, it is possible to still eat Simply sugars (soda, juice, candy bar), however it needs to be Within the meal, not alone.
If you son does have diabetes, your CF center will provide the dr's that will teach you both what you need to know.
I hope the information we provide can help you and best wishes <img src="i/expressions/heart.gif" border="0">