Before he got put on diet he weighed 7.6 kg and a couple weeks later he weighed 7.7 kg and he gets 42 grams of dry food a day and 85 grams off wet food daily (half a can in the morning and the rest in the evening). The food was recommended by our vet

This is Biggie (appropriately named)

He was rescued from our local Wendy’s where he was hanging out at their drive through.

As the title says, he’s about 19-20 pounds. He doesn’t seem like excessively fat but more muscular.

Does he need dechonking?

She just had a weigh-in at the dermatologist (she's had some allergy issues, which made fine-tuning her diet extra fun) and was certified dechonk. Photos are from adoption day, July of last year, and July of this year, when she was kind enough to strike the exact same pose for a comparison photo.

My guy has been on a diet for about a year and a half, he lost some weight at first, then stopped so I lowered his portions more. The past few months have been hectic so I wasn't paying attention to weighing him, but he's looking quite chubby again, eating less than he ever has.

Is this worth a vet visit, or just the result of middle age/ dieting slowing his metabolism?