Good luck with the trip - let us know how it turns out.
Funny thing about the food poisoning/parasite risks of travel in exotic places: I spent a total of over 7 1/2 years of my military career in Thailand, and travelled from end-to-end of the country and completely around its borders without EVER ONCE getting caught, gastro-enterologically speaking, and that's in spite of eating God knows what in some of the worst looking greasy chopstick joints imaginable, and messing with my Thai counterparts/advisees, who were always up for a game of 'do you think he'll eat THIS?'. In fact, the only places I've been food poisoned were Army messes (twice) and a local fast-food place recently. The Giardiasis was exceedingly unpleasant (though an EXCELLENT weight-loss program), and could have happened anywhere (though with much better odds when you eat at truck stops along the Grand Trunk Road, apparently - what DOES one say when the waiter brings several glasses of water holding them by inserting a finger or thumb in the mouth of each?).
Travel probably is broadening, in the intellectual sense, but can certainly be physically thinning.
mhb - Mike