Pet Obesity Prevention: A Growing Welfare Crisis in Companion Animals

Obesity in companion animals has reached epidemic proportions, with serious welfare consequences. Understanding the causes and evidence-based prevention strategies is essential for responsible pet ownership.

Key Facts

An estimated 40-50% of dogs and cats in the UK are overweight or obese, with rates rising year on year
Excess weight causes arthritis, breathing difficulties, diabetes, urinary problems, reduced heat tolerance and shortened lifespan in companion animals
Pet obesity is strongly driven by owner behaviour — feeding high-calorie commercial treats, allowing free feeding and underestimating food portions are the primary causes
Neutering significantly reduces metabolic rate in cats and dogs; post-neutering caloric intake must be reduced by approximately 20-30% to prevent weight gain
Caloric restriction is the most effective weight loss intervention; weight loss diets prescribed by vets and administered consistently produce meaningful results in most cases

Welfare Considerations

Pet obesity is a welfare problem that is almost entirely caused by human behaviour and is therefore highly preventable. Overweight animals experience chronic discomfort, reduced mobility and impaired quality of life — they cannot tell their owners they are in pain, and owners frequently fail to recognise obesity because it has become normalised. The welfare obligation for pet owners includes maintaining a healthy body condition score, using structured feeding rather than free feeding, limiting treats, and seeking veterinary guidance when weight management is difficult.

What You Can Do

Learn to assess body condition score in your pet — ribs should be easily felt but not visible, waist visible from above
Feed measured portions based on veterinary guidance, not package recommendations which often overestimate
Limit treats to less than 10% of daily caloric intake and count them in the total
Book a weight check at your vet if you are unsure about your pets body condition
Commit to regular daily exercise appropriate to your pets age, breed and health status