In reading a large number of posts, my current impression is that when individuals post with stories of natural treatments such as the grapefruitjuice story, a number of other members jump on and spread words about drugs all over these posts and do not give any attention to the original post and the content that was initially meant to be the topic.
I'm really sorry that you feel that way however I think it would have been irresponsible of me as a moderator to ignore the fact that grapefruit juice can be toxic to some and could lead to death on certain people that take certain meds. That being said, I love grapefruit juice and since it doesn't affect any of the meds that I'm on that I know of, I will continue to drink it and benefit from the positive health effects.
Most of what I take for my IBS is natural. I take fiber which is natural and I eat fruits and vegetables which are also natural and all of this treats my IBS. I have gone all routes of medicine, including conventional and unconventional and I'm really happy with my treatment which includes fiber and Miralax mostly which makes my quality of life so much better. I hope you find something that works for you.