your appendix is an irrelevant part of the anatomy, its stuck in there from the days where we used to eat grass and leaves, it helped us digest them... these days is is an irrelevant part of the anatomy and you only get infection in it when a piece of food lodges in it, goes off, expells gas, expands and pops.... thus an apendectomy, it happens to anybody, not just because they are on a specific diet.