Counting carbohydrates, or carbs—keeping track of the carbs in all your meals, snacks, and drinks—can help you match your activity level and medicines to the food you eat. Many people with diabetes count carbs to make managing blood sugar easier, which can also help Stay healthy longer. Feel better and improve their quality of life. Prevent or delay diabetes complications such as kidney disease, eye disease, heart disease, and stroke. If you take mealtime insulin, you’ll count carbs to match your insulin dose to the amount of carbs in your foods and drinks. You may also take additional insulin if your blood sugar is higher than your target when eating.