The book now says that you don???t count ???non-blood sugar impacting carbs,??? including polydextrose, glycerine, and sugar alcohol, as well as fiber, ???when doing Atkins.??? The Atkins Nutritionals website says, ???We do use fiber and other carbohydrates, such as sugar alcohols, that have a minimal impact on blood sugar and thus fit the Atkins definition of a ???non-digestible??? or net carb.??