I know you like a scientific explanation...but sometimes,there just isn't one.
My theory about IBS is that...it's all in our heads.Yep I said it.Can I prove it? No not really but the less I think about IBS the less it runs my life. If you THINK what you are doing works,no matter what,and it does then to me that is success and I don't care what anyone says.Facts or not.
The fact is if it works,and you can live a normal life again then DO IT.
BTW EFI does work for me when I am having issues but my issues are all pointed directly at my stress level and my head. I think there are some foods that effect your body no matter what but since we are all different,and our IBS stems from different things,everyone is going to find something that works for them. I don't care what Doc proved what.
When they Find a "cure" for IBS...then I Will listen To the Docs and the facts.Us ordinary people just want something that works. For the record,I read this book and it made no sense to me and I refused to try it but it obviously works for many.She keeps selling it.
-------------------- IBS-D since 1999...mostly stable..i do cheat too.Bad me.