Mr Jones said Sugar, who suffers with poor vision and deafness, recently had all of her teeth removed.

Her previous owner was partially sighted, he said, meaning Sugar could not be walked.

His other puppy, a healthy Bichon Frise called Winston, is strolled four times a day, but Sugar fights to make it through merely one, Mr Jones said.

“I take Sugar out as well but we have to go at her pace and it takes a lot longer so she is strolled once a day at the moment, ” said Mr Jones.

“Since she’s had her bad teeth removed she seems healthier and happier, so we’re going to try and increase her exercise.”

According to the Kennel Club, the ideal weight for a pug is between 14 and 18 lbs( 6.3 and 8.1 kg ).

Image copyright PA Image caption Sugar will undergo a weight-loss program in order to change the pounds

From fat to fit – top tips-off for pets

About 40% of cats and dogs in the UK are overweight or obese, so here are some tips from PDSA to get your porky pets in shape.

Go easy on the treats: Extra calories turn into fat, so treats should only be occasional and not part of a daily diet. For cats – little and often: Cats will feed between eight and 16 hours every day, regardless of if you give them a big dinner. Spread small portions throughout the day and use a puzzle-feeder to make it work for its many dinners. No human food: Certain human foods can cause tummy upsets or even poisoning. Leave the dog food to the dog.