Food is love—So why is nutrition a problem area for veterinarians?

As a child, I was a big fan of the Peanuts cartoons. One of my favorite characters was Snoopy, a suave, bipedal beagle who wrote novels and engaged in breathtaking aerial combat with his nemesis, the Red Baron. Though Snoopy was unlike most other beagles I have known, he had one characteristic in common to others of his breed, and indeed most dogs. When suppertime arrived, all other activities were forgotten, and he often launched into an exuberant, joyful, food-induced dance. Every feeding was a celebration for Snoopy, not only of food but of the bond between dog and owner.

Few subjects generate the same intensity of emotion in pet owners as the question of what to feed our animal companions. Feeding our pets is the quintessential act o...