This person from the UK is presently in a debate with a group of Pro F people. Turns out he has a testimony on his own IBS issues and it's online. I'm posting it here. The British drink a lot of tea for one thing and tea leaves are high in fluoride. I believe most of the UK public water is not fluoridated but some still is.
Much of the U.S. still is but it's changing. Slowly. Again the wheels of justice turn very slowly.
I believe more and more this fluoride issue is behind so much of our negative health issues.
http://www.healthychoices.co.uk/IBS_&_Fluoride.pdf