Companion Animal Obesity and Welfare

Obesity is the most common preventable welfare problem in companion animals. Excess body weight causes chronic pain, reduces mobility, and shortens lifespan in millions of cats and dogs.

Key Facts

An estimated 50-60% of dogs and cats in Western countries are overweight or obese
Obese dogs have a median lifespan 2.5 years shorter than dogs at healthy weight
Obesity contributes to osteoarthritis, diabetes, respiratory disease, and reduced exercise tolerance
Many owners systematically underestimate their companion animal body condition score
Veterinary body condition scoring on a 5 or 9-point scale enables objective assessment beyond owner perception
Prescription weight management diets combined with measured feeding are effective but require owner commitment

Welfare Considerations

Companion animal obesity is a welfare crisis driven by overfeeding, under-exercise, and owner normalisation of excess weight. Obese animals experience chronic joint pain, respiratory difficulty, and reduced ability to engage in normal behaviours. Because weight gain is gradual and owners compare their animals to other overweight pets, the problem is chronically underrecognised. Veterinarians have an important role in normalising body condition scoring conversations and providing non-judgmental support for weight management. Prevention through careful portion control and regular exercise from early life is more effective than weight loss management once obesity is established.

What You Can Do

Ask your vet to assess your companion animal body condition score at every routine visit
Feed measured portions using weighing scales rather than estimating cup quantities
Provide daily exercise appropriate to species, breed, and age for all companion animals
Resist feeding extra treats beyond a planned daily allowance that accounts for caloric content
Support pet food labelling reforms requiring clearer feeding guidelines calibrated to ideal body weight