Companion Animal Nutrition and Obesity: A Growing Welfare Crisis

Pet obesity affects an estimated 50-60% of dogs and cats in Western countries. The welfare consequences of chronic overnutrition include joint pain, diabetes, and reduced quality and length of life.

Key Facts

An estimated 51% of dogs and 59% of cats in the US are overweight or obese according to APOP surveys
Obesity in dogs is associated with arthritis, diabetes, respiratory problems, and cancer
Obese cats are 5 times more likely to develop diabetes than lean cats
Pet food portions are frequently overestimated by owners and packaging guidelines are often excessive
Treats account for a significant proportion of daily caloric intake in many pets without owner awareness
Veterinary nutritional assessment at annual check-ups dramatically reduces obesity rates when implemented

Welfare Considerations

Pet obesity represents a welfare crisis driven by anthropomorphism — owners interpret food as love and resist veterinary advice to reduce portions. Obese pets experience chronic joint pain from excess weight, metabolic disease, reduced exercise tolerance, and heat intolerance. Cats with diabetes require twice-daily insulin injections that cause acute discomfort throughout their management. Obese pets have demonstrably shorter lifespans and reduced quality of life in their later years. The welfare harm is real and measurable, but changes slowly because owners do not perceive the welfare cost until disease is advanced. Veterinary engagement on body condition scoring at every appointment is the most effective intervention.

What You Can Do

Ask your vet to body condition score your pet at every appointment and take their weight management advice seriously
Use a kitchen scale for measuring pet food rather than estimating portions
Count treats as part of daily caloric intake and reduce meals accordingly
Provide enrichment and exercise opportunities that satisfy pets needs for stimulation without relying on food as primary reward