Obesity in Pets

by Sarah Rees-Fallow

Maintaining a healthy weight is an essential part of responsible pet ownership. Obesity occurs when a pet carries excess body fat, and it is one of the most common health concerns seen in veterinary practice today. Current estimates suggest that around 50% of dogs and 43% of cats in the UK are overweight. Increasing numbers of rabbits, guinea pigs, hamsters and even pet birds are also affected!

Excess weight can significantly impact both the quality and length of life of our pets. Overweight pets are at greater risk of developing arthritis due to increased strain on their joints. They are also more prone to diabetes, heart and lung disease, high blood pressure and digestive problems. In addition, anaesthesia and surgery can carry greater risks in overweight animals.

How to tell if a pet is overweight


Weight gain can happen gradually, making it difficult to notice. Here are a few quick checks that can be done at home to see if your cat or dog is overweight:

  • You should be able to see and feel the outline of your cat or dogs ribs
  • A visible waist should be seen when looking from above.
  • You shouldn’t see a sagging tummy when viewed from the side.

If you have a pet rabbit then you should also be able to feel the ribs easily with only a small fat layer covering them!

Your pet may also be more tired than normal and reluctant to exercise.

If there is any uncertainty, a veterinary health check can provide an accurate assessment using body condition scoring and weight monitoring.

How can we help?

Obesity is mainly caused by eating too much or not exercising enough. Using human food as treats can carry more calories than you realise! In some cases, underlying medical conditions may contribute to weight gain. If you are worried that your pet is obese then it is a good idea to contact your veterinary practice to assess your pets overall health, determine an ideal target weight, and create a tailored feeding and exercise plan. Regular weigh-ins and ongoing support greatly improve success rates!

Acorn House offers free weight clinics run by our fantastic, experienced veterinary nurses. These clinics provide practical guidance, structured plans and continued encouragement to help pets achieve and maintain a healthier weight.