The method to determine the quantity of digestible carbohydrates, relevant for ketogenic diets, involves subtracting fiber and sugar alcohols (if applicable, and depending on their impact) from the total carbohydrate count. For instance, if a food item has 20 grams of total carbohydrates, 5 grams of fiber, and 3 grams of erythritol, the net digestible carbohydrate content is calculated as 20 – 5 – 3 = 12 grams.
Accurate carbohydrate calculation is fundamental to maintaining ketosis, the metabolic state where the body primarily utilizes fats for energy. This approach allows individuals following ketogenic dietary guidelines to enjoy a wider variety of foods while remaining within their carbohydrate limits, promoting adherence and potentially improving long-term health outcomes. Historical iterations of low-carbohydrate diets have always necessitated some form of carbohydrate tracking, though the precision and emphasis on fiber subtraction have evolved over time.