I was advised of a few things- regular meals, a portion of carbs with each meal, 5-a-day fruit and veg. Watch on food labels for sugars, should be less than 19% per day, drink plenty of fluid, and if you really crave chocolate, eat it after a meal, not as an extra snack - diabetic chocolate is a con!!
Hope this helps. I was properly diagnosed 6 months ago, so went out and bought a couple of recipe books. They were also helpful in their info about diabetes.
I hope this helps a little xx