Cat needs to lose weight . Help!

[Comps83]

Ok
So I have 2 sisters. They are very different in appearance .
They have the same life style , eat the same amount of food .
One is overweight and one is very light but the vet says she is perfect weight and other cat needs to be more like her but what can I do when they eat the exact same food?

Are you sure the fat cat isn’t stealing her sister’s food (I have to feed mine in separate rooms and pick up any leftovers). Or maybe visiting a neighbour for treats?
Is her slim sister getting more exercise than her?

No. The vet asked that. The slim cat is the dominant one and will push the fat one away to eat her food when she’s eaten her portion
I really think it’s just down to genetics
They are both house cats

She’s always been heavier . She’s always been solid even when they were tiny. I think they are just built differently but vet mentioned all the health risks if she doesn’t lose weight.

I mean she’s not enormous . You can’t tell she’s a lot bigger until you pick them both up and feel the weight difference

Fat cat on right

She’s hardly obese! Keep doing what you’re doing and don’t worry about her, IMO. As you say, some cats are built heavier, just like some humans.

My vet told me my cat was overweight 18 months ago and needed to lose about a kilo. A year later she was about 20g heavier. At that point he decided that she was at the weight she should be and not to worry about it.

Your cats are lovely. Just leave her be.

I thought the vet was talking about your sisters :)!

They both look beautiful.

I've got the same problem. One is a chunk. The other is skin and bone. Micro chip feeders don't work for my two. Not really sure what else to do. Mine are both house cats. I don't think there is a greed issue. They've never been food orientated.

How old are they? Have you got a rough idea how much they each eat?