It seems that pet nutrition is a common topic in the profession nowadays. Just a couple of weeks ago DVM 360 posted an article on how to read and interpret pet food labels. Along with the article they posted a couple of great client handouts on the topic. I can't attach the files on Blogger, but here are direct links to the handouts. I would encourage everyone to check them out.
The Pet Food Guessing Game (information on what different words and phrases on a label really mean)
Forget The Packaging, Read The Ingredient List (definitions of different terms in the ingredients)