Has anyone noticed this item has stopped working? I believe this is ever since they've added the "Cellulase" enzyme. I did some research online and Cellulase is not a naturally occurring enzyme in the body. It digests/breaks down fiber, actually lowering the fiber content of the fiber it's taken with. Clearly some people are less sensitive to this, but for those of us who have taken the supplement for a while and noticed a change, it's very frustrating.