An obese monkey who has become an internet sensation after seemingly getting hooked on scraps fed to him at a market in Bangkok, Thailand has been checked into the primate equivalent of boot camp to help him lose some weight.

The 20-year-old long-tailed macaque seems to be quite popular among tourists in the Bang Khun Thian district, who have been feeding him everything from melons to milkshakes to noodles day in and day out. Now the big eater nicknamed “Uncle Fatty” weighs 15 kilograms, twice that of a normal long-tailed macaque.

To avoid this, the Thai Department of National Parks, Wildlife and Plant Conservation has now transferred him to a wildlife rescue center. 

At the center, Uncle Fatty will soon start a program including running sessions with other animals and a lighter diet to hopefully cut his weight by half and allow him to roam in more comfort again.