U.S. pet obesity rates continued to increase in 2012 with the number of overweight cats reaching an all-time high. The sixth annual National Pet Obesity Awareness Day Survey conducted by the Association for Pet Obesity Prevention (APOP) found 52.5 percent of dogs and 58.3 percent of cats to be overweight or obese by their veterinarian. That equals approximately 80 million U.S. dogs and cats at increased risk for weight-related disorders such as diabetes, osteoarthritis, hypertension and many cancers.