The bus tabby cat was more than twice as heavy as an average cat and its mammoth belly measured a whopping 32 inches.
Shelter volunteers suspected that Bronson had been overfed with carbohydrate-rich food several times a day by his owner
Mike Wilson, 35, and Megan Hannman, 29, were hoping to adopt a new kitten as they adopted the larger-than-life Bronson in May met.
The couple designing cat furniture knew Bronson needed help shedding pounds and choosing to adopt the chubby cat.
Mr. Wilson and Mrs. Hannman, Grand Rapids, Michigan, USA, have put massive Bronson on a vet-recommended diet that has limited its intake to 375 calories per day.
Since May, Bronson has lost an unbelievable 1
Mr. Wilson, co-owner of the catastrophic creations, said, "When we first saw Bronson, we were shocked because we had never seen a cat of its size."
"It was huge. He really needed help.
"The next day, we went back to humane society to discuss the possibility of adoption.
" Luckily, they thought we would be a good fit for Bronson because of our experience with cats. What we do for a living do.
"We do not know much about Bronson's past.
" The shelter believes that its owner could have been an elderly person who was not very mobile and overfed.  "His blood tests showed that he had no health problems that would cause this weight gain, so it was just exaggerated."
"We think Bronson used to be on a diet of croquettes that consisted mainly of carbohydrates. We're pretty sure he was fed every few hours before.
"We've changed it – it's now on a wet, grain-free and low-fat meal.
" We add water, making it a kind of soup to replenish.
"He likes the food well, but you realize that he just wants more.
" He wakes us up in the middle of the night and meows for a snack.
The couple, who has three other cats, wants to help Brothers lose a pound every month so that he can finally get enough to operate on a broken tooth.
The car-loving cat is also on the house limited because he is too fat to take medication to protect him from fleas and ticks.
Mr. Wilson said, "Our vet has discovered that one of his teeth is broken and needs to be pulled, but now he is too heavy for anesthesia to perform the surgery safely.
"So far, he has lost a pound of pounds, but hopefully in a few months he will be able to pull that tooth 9002]" We think he will have a much better quality of life this year next year. "Of course he would like more
"He is not enthusiastic about the lifestyle changes, but hopefully he will be happier can move in a few months better. "