Canine obesity affects over 50% of pet dogs in developed countries and causes significant welfare harm through painful conditions, reduced mobility, and shortened lifespan.
Canine obesity is a preventable welfare crisis caused by overfeeding — a human behavioral failure that causes animal suffering. Obese dogs experience chronic joint pain that limits their ability to exercise, which further exacerbates weight gain in a welfare-compromising cycle. The welfare harm is substantial and measurable — weight loss studies demonstrate significant improvement in mobility, play behavior, and quality of life indicators when dogs achieve healthy weight. The challenge is that overfeeding is often a misexpression of love by well-intentioned owners who have difficulty recognizing their dog's weight status. Veterinarians have a welfare obligation to address obesity directly even when doing so feels uncomfortable, and owners have a welfare obligation to respond constructively rather than dismissively.