How do I know if my dog is obese rather than just big?

The body condition score is the most reliable way to distinguish frame size from excess fat. A large-framed dog can have well-defined ribs, a visible waist, and a healthy abdominal tuck even at a high scale weight. A dog whose ribs are buried under fat, who lacks a waist, and who has a rounded belly is carrying excess body fat regardless of whether the weight number seems reasonable for the breed.

Can obesity in dogs be reversed?

Yes — with a structured, vet-guided approach, most overweight dogs can reach a healthy body weight over a period of months. The key is gradual, sustained calorie reduction and increased activity rather than rapid restriction, which can cause muscle loss alongside fat loss and is harder to maintain.

Does spaying or neutering cause obesity?

Spaying and neutering lower a dog's resting metabolic rate, typically by around 20–30%, which means the dog's daily calorie needs decrease after the procedure. If food portions are not adjusted accordingly, gradual weight gain is very common. The surgery itself does not cause obesity — the mismatch between unchanged food intake and lower energy needs does.

What is a body condition score and how is it used?

A body condition score (BCS) is a standardised numerical assessment of a dog's body fat, typically rated on a 9-point scale where 1 is severely underweight and 9 is severely obese, with 4–5 being ideal. Vets use it alongside weight to assess a dog's nutritional status and to set a realistic weight-loss target — because ideal weight is specific to a dog's own frame, not just their breed average.

Dog Obesity Guide | PetCalculator

Canine obesity is one of the most common and most preventable health problems in dogs — and one of the easiest to miss until it is well established. Here is how it is defined, why it matters, and what the path forward looks like.