ABC News December 26, 2018

Fiona the hippo isn't feeling glum about holiday weight gain as she hits 1,000-pound mark

WATCH: Fiona the hippo celebrates hitting 1,000 pounds

Most people are upset about gaining a few pounds over the holidays, but not Fiona the hippo.

The baby hippo, who was born prematurely and has gone on to become an internet star of sorts in her first two years, hit a milestone on Wednesday.

The Cincinnati Zoo reported that their most famous resident weighed in at 1,000 pounds.

Angela Hatke/Cincinnati Zoo & Botanical Garden via AP, FILE
A baby Nile hippopotamus named Fiona rests her chin on the rim of a tub in her enclosure at the zoo in Cincinnati, March 23, 2017. The zoo says the hippo, which weighed 29 pounds at birth and is the first Nile hippo born at the zoo in 75 years, is getting more independent and now tops 100 pounds (45.36 kilograms), meaning her days of napping on her human caretakers' laps are dwindling.

In a tweet that includes video of the voluptuous semi-aquatic mammal getting on the zoo's rather large scale, they note that the achievement is a landmark event.

"That's a long way from the 29 pounds she weighed when she was born six weeks premature on January 24, 2017!" the Zoo wrote in a tweet.

"Her #NewYearsReZOOlution: to keep growing!"

That resolution should be no problem, as adult female hippos tend to reach about 3,000 pounds.

Fiona has been making headlines since her birth as she was the first Nile hippo born in the Cincinnati Zoo in 75 years.

There were concerns during her early labor, and her initial weight of 29 pounds sparked concerns since a typical newborn hippo weighs between 55 and 120 pounds.

John Minchillo/AP, FILE
Fiona, a Nile hippopotamus, center, plays with her mother Bibi, in their enclosure at the Cincinnati Zoo & Botanical Garden, Nov. 2, 2017, in Cincinnati.

"We did not anticipate that the calf would survive," Christina Gorsuch, director of mammals at the zoo, told Nightline in January 2018, ahead of Fiona's first birthday.

(MORE: Meet Fiona the hippo, whose journey to health has made her a social media star)

The zoo regularly updates Fiona's followers on their Facebook page -- including a page dedicated to her eponymous show. On Christmas, they posted a photo of Fiona and her mother, Bibi, swimming while Fiona appeared posed up next to a Santa hat.

No word yet as to how the social media darling will celebrate her second birthday next month, but if last year is any indication, she indulged with a cake and some pineapples, which her mother helped dig into as well.