Really the race wouldn't be a prime indicator for me but rather what the person ate.
I'd have to go for vegans first as their meat would taste, I'm guessing, most like the majority of vegetable/grain eating animals that we already consum. Carnivorous animals are known for tasting like crap in general.
But if I HAD to pick one of what you mentioned, I'm gonna have to go with Asian as they would likely eat less dairy and meat than the other two groups.
