Dr. Phil Zeltzman is a traveling, board-certified veterinary surgeon in the Allentown, Pennsylvania area. He is a certified veterinary journalist, an award-winning author and a prolific speaker. He recently co-wrote Walk a Hound, Lose a Pound, about weight loss in dogs and humans. He also writes a free weekly newsletter, available at DrPhilZeltzman.com. Read more:About Pets Adviser.