By now it’s no secret that the growing obesity epidemic isn’t only affecting the human population in America, but the pet population as well. According to the Association for Pet Obesity Prevention, obesity in U.S. cats rose again last year to 55 percent. Obesity causes many of the same problems in cats that it does in people, including serious health issues like diabetes, arthritis, respiratory difficulties and heart disease. If your cat is overweight and obese, and you need help adjusting its diet to help it lose weight, start with our guide to cat weight loss. And always consult your veterinarian for his or her expert, professional advice.