Norm Lopez takes a bath on the sidewalk in front of his house after his breakfast early Tuesday morning, Aug. 13, 2013 in Sacramento, Calif. (AP Photo/Sacramento Bee, Sue Morrow)

Fat cats? New study shows cats’ heaviest weight higher now than in 1990s

Male cats generally hit higher weight peaks than female cats

A new study involving more than 19 million cats from across Canada and the United States suggests most of the animals continue to put on weight after they reach adulthood, and their heaviest weight is higher now than it was two decades ago.

Researchers at the Ontario Veterinary College at the University of Guelph analyzed 54 million weight measurements taken at vet offices between 1981 and mid-2016 to get a sense of the typical weight gain and loss pattern over the course of a cat’s life.

They say the study, published in the Journal of the American Veterinary Medical Association this week, is the first of its kind to use such a large pool of data.

Overall, the data showed cats’ mean weight reached its peak between six and 10 years of age for the most common purebred breeds — Siamese, Persian, Himalayan and Maine Coon — and at eight for domestic cats.

Male cats generally hit higher weight peaks than female cats, and cats that were spayed or neutered tended to be heavier than those that weren’t.

The findings showed a difference of about one kilogram between age one and the peak. As well, the mean weight of neutered, eight-year-old domestic cats rose about 1/4 of a kilogram between 1995 and 2005 and then remained steady for the next decade.

“It might not seem like much but half a pound is still a significant amount for a cat,” said lead author Adam Campigotto.

The study is meant as a starting point for further research and did not look at what caused the changes in weight, nor did it establish what a healthy weight is, said Campigotto.

Some possible, untested explanations for the shift include that more people may have begun to keep their cats indoors in that time period, or that changes were made to the palatability of cat food, or in pet owners’ feeding behaviours, he said.

“Treats can have a big impact on weight for their animals and often people associate giving treats as a kind of love,” he said.

The researchers said slightly more than half the cats involved in the study had only one weight measurement in their veterinary file, which they said suggests the animals’ owners may not have scheduled regular vet visits or may have switched clinics.

However, the sheer number of records collected meant researchers were able to fill those gaps by combining all values for each year of age, the team said.

Another of the study’s authors, Theresa Bernardo, who is also a professor at the college, said pet owners may want to begin weighing their cats at home if it isn’t being done at the vet. Weight changes may be linked to other health issues, though those correlations were not drawn in this study, she said.

One of the next steps will be to look at how to manage cats’ weight, Bernardo said.

“We have another project where we’re looking at using technology like automated feeders,” she said.

“In many cases, there are multi-cat households and sometimes one cat is eating a good share of the other cat’s dinner, so there are feeders now that will actually feed each cat separately, which helps you get a hold of that kind of situation.”

The study’s findings can help vets discuss health issues related to weight with cat owners, the researchers said. More work is needed to explore the links between cats’ body weight and various conditions, they said.

READ MORE: Meow hear this: Study says cats react to sound of their name

READ MORE: South Surrey woman camps for days to find lost cat

Paola Loriggio, The Canadian Press


Like us on Facebook and follow us on Twitter.

Just Posted

Fire destroys house in Greenwood on Saturday

Neighbours say the fire started around 11:30 a.m.

Snowfall warning for Kootenay and Paulson passes

Up to 30 cm expected in mountain passes Saturday and Sunday.

Grand Forks residents rally for a ‘fair deal’ in flood buyouts

Demonstrators also criticized how long it has taken to be offered land deals

Police seize drugs, weapons and cash from Christina Lake residence

One man was arrested when RCMP executed a search warrant on Nov. 14

Moose tests positive for Chronic Wasting Disease in northwest Montana

This is the first time the disease has been detected in the species in Montana

Teen with cancer whose viral video urged Canadians to vote has died, uncle tweets

Maddison Yetman had been looking forward to voting in her first federal election since junior high school

B.C. woman ordered to return dog to ex-boyfriend for $2,000

After the two broke up, documents state, they agree to share custody of the dog, named Harlen

Abbotsford police chief mulls more enforcement of homeless lawbreakers

‘When all else has failed we have to hold people accountable,’ Police Chief Mike Serr tells council

Government needs to step up to address $10M RCMP budget deficit: Morrison

Kootenay-Columbia MP Rob Morrison says governments need to ensure rural communities are protected

Striking Vancouver hotel workers, employer reach ‘tentative’ agreement

Employees of the Rosewood Hotel Georgia have been out at picket lines since talks broke off on Sept. 21

RCMP cut free activists chained to Kelowna bank, placed under arrest

The group is protesting Interior Savings Credit Union’s support of Kelowna Ribfest

Cold, stormy winter forecast across much of Canada, The Weather Network predicts

In British Columbia temperatures will be slightly above normal and precipitation will be just below normal

Cell phone tickets worse tax grab than speed limits, SenseBC says

Distracted driving statistics questioned as B.C. tickets pile up

Rowing Canada, UVic investigate celebrated coach for harassment, abuse

Lily Copeland says she felt intimidated and trapped by Williams

Most Read