Lose the puppy fat: study has a bone to pick with Crufts' dumpy dogs

Basset hounds at Crufts earlier this year. The breed is one of those most likely to be overweight. Photograph: Oli Scarff/AFP/Getty Image

The pampered pooches on show at Crufts are billed as the finest doggie specimens – but one in four is overweight, research has revealed.

Analysing 960 images of 28 different breeds of adult dogs placed between first and fifth in their class between 2001 and 2013, researchers found just over a quarter were overweight.

And widespread dissemination of pictures from the world’s largest dog show may be normalising obesity in the animals, the study published in the journal Veterinary Record said.

Pugs, basset hounds, and labrador retrievers were the breeds most likely to be too chubby, with 80% of pugs analysed by the researchers found to be overweight. All three of those breeds are renowned for being prone to obesity.

Pugs were originally bred to be a companion dog, but basset hounds and labradors were bred for hunting and fieldwork respectively, so being larger would not be advantageous, according to the researchers.

Labradors were originally used for hunting and fieldwork, so like this pair at Crufts their ideal weight should reflect this. Photograph: David Sillitoe for the Guardian

Overweight dogs can suffer limited lifespans and are more prone to diabetes, breathing problems and orthopaedic issues, as well as certain cancers.

Standard poodles, border terriers, Rhodesian ridgebacks, Hungarian vizslas and dobermanns were the least likely to be overweight. None were underweight, which the researchers said suggested “judges are more aware of the characteristics associated with underweight condition”.

Obesity among show dogs is, perhaps unsurprisingly, less prevalent than in ordinary pet dogs. But researchers said it was still a cause for concern that 26% of dogs at Crufts appear to be above their ideal weight.

Labradors were originally used for hunting and fieldwork, so like this pair at Crufts their ideal weight should reflect this. Photograph: David Sillitoe for the Guardian

“These dogs showcase the ideal characteristics of the pedigree breed, and there is a danger that widespread media exposure might adversely influence owner perception of optimal body shape,” the report said.

“Given the proportion of show dogs from some breeds that are overweight, breed standards should be redefined to be consistent with a dog in optimal body condition,” its authors suggested.

The Kennel Club, which runs Crufts, said its new judging criteria had policies to emphasise the importance of good canine health, including weight.

“Further effort is now required to educate owners, breeders and show judges so that they can all better recognise overweight condition, thus helping to prevent the development of obesity,” the organisation said.