Diabetics should generally eat snacks and meals having one-third as many proteins as carbs! For example, if you have a snack that contains 21 grams of carbs you want to balance that with 6 to 8 grams of protein. This is not a hard and fast rule but something that should be done as often as possible. It will help you control your blood sugar in almost all cases.This is what I was taught years ago and I have successfully controlled my diabetes by following this rule and taking a 500 mg metformin for almost 13 years. This is the only way I count carbs.