What is Carb Counting? As you may guess from the name, carb counting involves adding up all the carbohydrate in the foods you eat. Counting carbs in the food you eat can help you predict how much glucose will be entering your bloodstream after you eat. To do this, of course, you need to know how much carbohydrate is in different foods. There can be a wide range in the amount of carbs in different foods, even within the same food group. As you can see in Table 1.1, a medium banana has 27 grams of carbohydrate, while 1 cup of strawberries has 11 grams of carbohydrate. Both are fruits, but the