Yes, BUT you MUST make sure you get plenty of water. No, Coke, coffee, tea, and Budweiser do not count.Also, I think you'll find that you may have to experiment with fiber to see what helps you the most. Psyllium-base products like Metamucil make me worse because psyllium produces gas. Fibercon works better, and just adding more FINELY ground whole wheat to my diet in the bread I make at home helps too. But that store bought bread KILLS me with all that high fructose corn-syrup ####.I don't feel 100% well ever even with fiber. However, before fiber, I had MUCH MORE pain, urgency and cramping.