1.  Pottenger’s 10 year study on generations of cats looked at the health effects of a raw food diet over a cooked food diet.  See a summary of his study at http://www.felinefuture.com/nutrition/bpo_ch2.php. 

2.  The Whole Dog Journal runs an excellent annual article on the best commercial foods. http://www.whole-dog-journal.com. 

3. Nutrient Requirements of Dogs, Revised 1985, p. 8.   http://www.nap.edu/books/0309034965/html/. 

4.  For further information, please see http://home.hawaii.rr.com/wolfepack/foodcht1.html

5.  The FDA’s study can be found at http://www.fda.gov/cvm/efoi/DFreport.doc.