There is actually a sociology of food, part of the sociology of consumption (tastes and preferences, that sort of thing), in which a big name is Pierre Bourdieu. Turns out all of our tastes, including political ones, can be mapped as a series of homologies pretty neatly. Don’t know how deep into this you want to get (Bourdieu himself is pretty dense going), but here’s a link to an article viewable in html titled “More Mental than Dental” on Bourdieu’s relevance for food taste analysis and nutrition. Cheers!