McDonald's can be tricky since most of their food is high in both carbs and fat -- not a good combination since it can lead to prolonged elevated blood sugars. The carbs make the BS rise and the fat causes the BS to stay high since it makes the food hang around in the stomach longer. Also, the portions at a lot of fast food places are getting larger and larger which makes this fat-carb effect even worse. So what's a person to eat? Actually, a plain hamburger with a small fries is not a bad choice. It's certainly not health food but if you count the carbs up, it's about 3 carbs (1 bun + the fries). The chicken sandwich isn't a bad bet either. The best thing to do is to know how many carbs you are allowed at lunch or dinner and then chose accordingly. You should also know that all the carb info is posted on the wall at every McDonald's and if it isn't, just ask for it!