Lexie has been on the powder for several years too. The vet said it was ok for long term. Vet told me to mix 9 tbsp cornstarch with 1tsp powder to get rid of bitter taste. She gets 1/2 tsp of that mixture each meal. I bought a huge container through revival health. It was a lot cheaper than going to the vet every month for 1tsp. We tried going off of it, but it is the only thing that helps her poo. She is also on the low residue mixed with wellness food. I also give her a lil sweet potato in her food which helps. We have been doing this for 2 years and (knock on wood) so far so good. gl