I've never tried Datrex. I have eaten a lot of Mainstays and (though some think I'm nuts) I actually like the taste. I have eaten them exclusively for a 3 days straight on 2 occasions before finally giving in and going out for a hamburger. I haven't gotten past 3 days yet but they say the third time is a charm. <img src="/images/graemlins/smile.gif" alt="" /> Maybe next time I can go 6 days before the desire for 'real' food overwelms me. The irony is that the Mainstay are A LOT healthier than my normal fare. <img src="/images/graemlins/grin.gif" alt="" />