Obesity is the most common preventable health problem in companion animals, affecting over 50% of dogs and cats and causing significant welfare impacts through chronic pain, reduced mobility, and shortened lifespan.
Companion animal obesity causes chronic pain and welfare compromise that is often invisible to owners who associate weight with health and a well-fed appearance with good care. Arthritic obese pets that reduce activity are often assumed to be resting rather than compensating for joint pain. The welfare harm accumulates silently over years, shortening lifespan and reducing quality of life throughout. Veterinary communication that clearly connects body condition to welfare outcomes, combined with practical weight management support, can motivate the dietary and exercise changes needed. Preventing obesity through appropriate feeding from puppyhood and kittenhood is far more effective than treating established obesity.