A former 41-pound cat dubbed Skinny has lost more than half of his weight to become the darling of a Dallas veterinary clinic.

Dr. Brittney Barton said the orange tabby she adopted in 2013 has slimmed down to 19 pounds with exercise and a special diet.

Barton calls Skinny the 'resident cat' at her practice, HEAL Veterinary Hospital.

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Weight loss: Skinny the cat went from 41 pounds in 2012 (left) to 19 pounds in 2015 (right)

Snuggle: In this photo provided by the HEAL Veterinary Hospital & Pet Rehabilitation, Dr. Brittney Barton holds Skinny, who when found wandering near Dallas in 2012 weighed in at 41 pounds

Barton said Friday that Skinny spends weekdays roaming the clinic.

The ex-fat cat's weekends are spent at home with Barton and her family.

Skinny was found abandoned near Dallas in 2012 and ended up at a shelter.

The vet said Skinny just had his annual checkup and is healthy.

Barton said Skinny is living proof that while he's supposed to be a large cat, 'he's not supposed to be an obese cat.'

Barton told the Dallas Morning News this week: 'I'm happy where he is at this point in time.

'The rest is just excess skin.'

The newspaper reported skin-removal surgery is a possibility for the feline.

Lifestyle: Barton said Friday that Skinny spends weekdays roaming the clinic. The ex-fat cat's weekends are spent at home with Barton and her family. This March 2013 file photo shows him at 34 pounds

Treatment: Barton said Skinny is living proof that while he's supposed to be a large cat, 'he's not supposed to be an obese cat' (file photo)

In a September 2013 story from the Dallas Morning News, Barton said: 'I was stuck at about 30-31 pounds with him for longest time because you don’t want to starve it off of him because he still has vital nutrients and minerals that he needs to have every day to have a healthy body.

'But to try and help wake up his metabolism a little bit we needed to help increase his muscle mass and increase exertion.'

HEAL Veterinary Hospital posted a video to YouTube in December 2013 which showed Skinny's fitness regimen.

It included walking, cat sit-ups, and using a treadmill underwater.

Weight loss journey: Skinny reportedly weighed 41 pounds when the photo on the left was taken, and weighed 34 pounds when he was snapped on the right with Dr. Barton