I was honored to present a special keynote at the 2017 Obesity Action Coalition (OAC) Your Weight Matters Conference held in New Orleans, Louisiana USA. In this impassioned presentation, I discuss why I believe pet obesity is a disease, why obesity is a shared disease of humans and animals, the role pet care shaming and weight bias play in veterinary medicine, and why I've dedicated much of my career to fighting pet obesity. I also review the role of chronic inflammation, strategies for effective weight loss, differences in pet owner and veterinary professionals' attitudes on diet and nutrition, and challenges for the future of pet food and weight loss.