well, for me (not to offend any1 here)..i used to have daily stomach problems. i was constantly bloated, nauseous etc etc... everyday! basically i was eating the wrong foods. and what makes me even more convinced that this type of diet works for me, is that it was confirmed with a food allegies test i had done. they take a sample of blood and test what foods you r allegic to.
most of the foods on the diet that i was told to avoid came up in the allegies test...surprise surprise!
so now..although its not the easiest diet to follow...cant eat what "most' people do, at least now i dont have the problems i used to have. Also other benefits such as clear skin have resulted.