no lie about the kenyas. last year i travelled with a bunch of them, and invariably they would either choose chinese buffet, mcdonalds, or pizza. i don't know that we ever ate anything else unless the race provided it. those guys can kill some fries. the only way i ever found to break them from it was to introduce them to real mexican food - good carne asada, black beans, and good tortillas.
i was at a race with one of them, and i offered to buy him dinner. he had won, so i told him we'd go wherever he wanted and i'd buy. the result: macdonald's - 2 big macs, 2 fries, and like 5 refills on the coke. of course i saw this same guy down 2 IHOP burgers and fries for breakfast once, so he may be a freak example.