There's a really neat site where you can discover the nutrient content of foods at http://www.nal.usda.gov/fnic/cgi-bin/nut_search.pl. The site is part of the USDA (US Dept of Agriculture) site for the National Agricultural Library, Food and Nutrition Center, http://www.nal.usda.gov/fnic/. The NAL also has some great pages talking about food safety.