Cats tolerate prolonged calorie deficits poorly, and crash dieting can trigger hepatic lipidosis, a risk specific to feline weight loss.
The common pace is about one percent of body weight per week, with a vet-confirmed target weight and small stepwise cuts from current intake.
High-protein, higher-fiber weight-management food, weighed portions, and puzzle feeders that slow eating help preserve muscle and satiety.
Weigh and log every two weeks; if loss stalls or the cat seems unwell, revisit the vet to adjust rather than tightening restriction yourself.