When Ponyo was rescued from an animal hoarder, where she had been free fed and also given table scraps, she weighed 27lbs, which on her tiny frame was quite fat. The vet that her rescuers took her to determined that since she's actually a bit of a runt she should be around 20lbs. When she was delivered to us a couple weeks ago, she had lost about 3lbs. According to my oh-so-scientific method of holding her while standing on my bathroom scale, she is now at 20lbs(I'll refrain from letting you know what the actual number on the scale was...), after being on a diet and getting lots of exercise every day. Once we have our vet confirm that she's at target weight, I'll take her off the diet, which I'm sure will thrill her.
Ponyo when she was first rescued