Carbohydrate Calculator

The Carbohydrate Calculator estimates the percentage of carbohydrates you will need each day. Carbohydrates are not essential nutrients – the human body can obtain all its energy from protein and fats. However, the brain and its neurons generally cannot burn fat and need glucose for energy. The Institute of Medicine recommends a minimum of 130 grams of carbohydrates per day, which is the average minimal usage of glucose that the brain uses on a daily basis.