Does the anthropology of eating sound like an interesting research topic? If so, consult the "English-Language Sources for the Anthropological Study of Diet and Nutrition" from the World Food Habits Bibliography at Illinois State University.
To give you some idea of our culture's obsession with food, consult the directory on food from Google.com. There, you will find tens of thousands of links on topics ranging from cheese (sixty categories) to drink (5952 categories) to cooking (19, 618 categories).
Let's say that your search above and a recent visit to New Orleans, or to a Cajun restaurant, has whetted your appetite to do a paper about Cajun and Creole cooking. Check out the homepage of CookingLouisiana.com, and see if you can find ways to narrow your research topic.
If you've decided to do a research paper about the eating disorder anorexia nervosa, consult the homepage of the National Association of Anorexia Nervosa.