I have a fat cat. Three of my cats were grazers, they would eat a bit,
leave, come back for more later. One would eat as much as she could
like there might never be another meal. So what can I do? I leave out
the food so the others can graze and Marlo eats too much and gets fat.
We play and try to keep her active. But she gets fat even if she
doesn't eat more than the others. Some cats, like some people, just
get fat.
I have a cousin who was obese and recently (over a two year period)
lost maybe 140 lbs. She's now pretty normal size but has to eat almost
nothing to avoid gaining weight. There is just something about her
metabolism that causes her to gain weight. If she eats what I eat,
she'd be right back where she was before.
But if you really want to lose weight, don't eat meat. I know quite a
few vegetarians and none over overweight.