ideally, for a balanced meal, divide your plate up...1/2 should be veg, 1/4 carb and
1/4 protein, with a dairy serving and a fruit alongside. it's a great guideline to ensure you're getting enough veg, whether you are type 2 diabetic or not.
cutting carbs drastically is an efficient way to lose weight quickly, which would certainly improve one's blood sugars, but isn't very practical, or healthy, for the long term.