Like "I am a type 1 diabetic with insulin resistance so I take metformin along with my insulin. 33 units per day is my average dosage. I average 150 carbs per day. More than that will cause me to gain weight. I avoid cereal, rice, and food containing sugar. I limit myself to a half cup per meal of foods with fast acting carbs, like potatoes and pasta. The only bread I eat is low carb 7 grain bread by Pepperidge Farm, only 9 carbs per slice."