Whether you are searching for primary or secondary sources, it is important to use search terms that will generate results. We use subject headings in the library catalog--a controlled list of terms used to collocate results. Some subject headings that you may find useful are:
Agriculture
Beverage industry
Beverages
Cookbooks
Cookery
Cooking
Diet
Food
Food consumption
Food habits
Gastronomy
Grocery trade
Hunting
Vegetarianism
Subject headings can also be further narrowed down by category or geography. For instance, different aspects of food studies may be found by searching:
Food - History
Food - Religious aspects
Food - Social aspects
Or to narrow down results to a specific geographic area:
Food - Mexico
Food - China
Cookery - Caribbean