Cat Dad Expected Runt to ‘Stay Small’—Unprepared for What She Grows Into – ryan
A cat dad thought bringing home the runt of the litter would mean she’d “stay small,” but his recent TikTok video revealed the opposite.
Owner Bren expected his new white kitten, Nimbus, to be small forever. Yes, she would grow more, but given her size, it wasn’t expected for Nimbus to be a giant cat.
The runt of the litter is significantly smaller than the rest and sometimes the weakest of the newborns. An article from Cat World explains that a runt might develop due to a lack of nutrients in the womb compared to the siblings, and after birth, they might struggle to eat because of medical defects or weakness.
However, the opposite happened for Nimbus.
Bren shared on his TikTok account, @thezenbren, the difference between Nimbus as a kitten and now. The first clip shows Nimbus perched on Bren’s shoulder. Her tiny body fit all four paws on his shoulder without falling off, and his head looked bigger than her entire body.
Then Bren revealed what Nimbus looked like today as he zoomed in on her sleeping in the doorway. She looked like an extra-large loaf of bread, with her belly protruding past her legs. Her once sunken face had been replaced with extra fur and chunk to kiss.

@techenebren/tiktok
Newsweek reached out to @thezenbren via TikTok for comment.
TikTok viewers couldn’t believe the night-and-day difference with Nimbus, calling her a “delightfully sturdy marshmallow” and a “cloud.”
One commenter joked: “That ain’t a loaf, that’s the whole bakery.”
Another person wrote: “You put too much yeast in that bread dough.”
A third person commented: “When runts are loved and spoiled they grow massive and it’s wonderful.”
While her significant transformation captured the internet’s attention, reaching 4.2 million views and 1.1 million views, it also brought in some backlash over the cat’s weight. Bren informed viewers in the TikTok caption that Nimbus is on a diet and they are “working to getting her smaller.”
According to PetMD, felines are considered overweight if they are 10 to 20 percent over the cat breed’s ideal weight and obese if they are over 20 percent. Cat obesity occurs in about 63 percent of cats in developed countries, making it a common condition that can cause significant health risks.
Aside from the physical change in weight, owners should look for other symptoms of obesity in cats, which include difficulty jumping or climbing stairs, unwillingness to move, unkempt hair, less frequent bowel movements, or their collar becoming tighter.
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