Sociology: Food Resources

MedlinePlus-Nutrition

The United States Department of Agriculture's (USDA) Food and Nutrition Information Center

The Centers for Disease Control & Prevention (CDC) Nutrition portal

Food Insight, from the International Food Information Council (IFIC) Foundation

Food Safety

The Food Environment Atlas from the USDA

National Nutritional Guidelines

• The United States has MyPlate
• Canada's food guide
• International guidelines

The following databases from the USDA will be helpful:

• Food Data Central.
• Nutrition.gov.
• The National Agricultural Online Catalog (AGRICOLA).
• PubAg.  Some overlap with AGRICOLA.
• Food Surveys Research Group

The following databases from NMU will be helpful:

• PubMed, from the US National Library of Medicine.
• Science.gov (limit your search areas to Agriculture & Food or Health & Medicine)
• Food Composition Databases from ScienceDirect.
• Agriculture--Agronomy from BioOne.
• Westlaw Next.  Within the Westlaw Key Number System (subjects), #178 deals with food.

Cooperative Extension Services (national and from each state)

• List of National Extension agencies
• Michigan, including a section on Food Policy

Within the library catalog (or WorldCat), the following subject headings can be used:

• "Food Habits" (and add in the name of a country, or region)
• "plants, cultivated"
• "Food--social aspects"
• "food industry" 
• "food preferences"
• "Food consumption"
• "Food--Moral and ethical aspects"
• "Appetite -- Physiological aspects"
• "Food habits -- Psychological aspects"
• "COOKING -- Essays & Narratives"
• "Diet"

There are dozens more subject headings that will be unearthed as you search.  And you can always simply type in the name of the food or meal you are interested in--less is more when searching.