Calculate net carbs by taking the total carbohydrate amount on the nutrition information of a particular food item and subtracting dietary fiber and sugar alcohol. For raw products without nutrition labels, Ketogenic Diet Resource provides a list of charts indicating the amount of carbohydrates typically found in certain foods.
The calculation for net carbs shows the amount of carbohydrates that affect blood sugar levels. According to certain diets, such as the Atkins Nutrition Approach, consuming a lower amount of net carbs leads to more weight loss. When reading the nutrition facts label, always remember multiply the number of net carbs by the amount of servings to get an accurate amount.