I am taking 4 tsp of a Metameucil type supplement that adds up to 45 calories and 22 carbs for just 12 carbs. It's sugar free, too. I used to eat Fiber One cereal which has 14 g dietary fiber and 25 carbs per half cup for 60 sugar free calories. How do I calculate the carbs in these foods? It seems like Fiber One is the better deal but my dr. recommended the other. Does anyone use either or both? This is a necessity for my diet and if I have to use up my carbs, I shall, but what a waste.