Feline obesity raises the risk of diabetes, arthritis, liver disease, and shorter life span. Safe weight loss is slow; crash dieting can cause hepatic lipidosis, a serious liver condition. Aim for about one percent of body weight lost per week or follow your veterinarian’s target, and use a gram scale for food instead of cups, which vary in accuracy.
Start with a physical exam and diet plan from your vet, especially if your cat is very heavy or has other health issues. Transition to the new food gradually over a week to avoid refusal or stomach upset. Feed measured meals on a schedule rather than free feeding; that makes calorie control predictable. Split calories into several small meals if your cat seems hungry.
Increase low-impact activity: wand toys, food puzzles, and vertical space encourage movement without stressing joints. British Shorthairs, Persians, and Ragdolls are among breeds that gain weight easily, so watch portion creep from treats and multiple household feeders. Everyone in the home should use the same measured plan.
Weigh monthly at the clinic or with a home baby scale. If weight stalls or drops too fast, adjust with veterinary guidance. Prescription weight diets can help with satiety and nutrient balance. Never starve a cat to force rapid loss. Patience and consistency matter more than dramatic cuts.