Article: Dear Dr. Fox: I am puzzled ...

Dear Dr. Fox:

I am puzzled by conflicting opinions about the amount of protein advisable in a cat's diet. In particular, my dilemma has to do with my older cat, Aimee. Four years ago, when she was 9, I put her on the highest-protein premium cat food I could find (Purina One), with the thought that cats are strict carnivores and not designed to digest all the carbohydrates found in less expensive "grocery store" cat foods. As she was a bit chubby, I chose the weight-management formula with 38 percent protein. My cat responded by slimming down, becoming more active and recovering from apparent depression. She started playing with our new kitten, her coat became softer and more lustrous, and ...

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