t2sp (is that okay to shorten your username like that?) - Welcome to the BB! Not that I wish IBS on anyone, but it's good to see more people finding this board. I know it's been a tremendous help for me over the past three years.Sounds like you have a similar 'regime' that I have. I can't take metamucil, but lots and lots of water for me too! What is FOS?I'm a huge supporter of magnesium and sure hope it works for you. If you have any questions, let me know. I have my email in the profile.Ty------------------There is nothing so strong as gentleness,and there is nothing more gentle as real strength.