Cats can and should lose excess weight — but the how matters more than with dogs, because cats that drop weight too fast can develop a dangerous liver condition. Slow and steady, with your vet's involvement, is the rule.
Read this first: never crash-diet a cat. If a cat loses weight too quickly or stops eating, it can trigger hepatic lipidosis (fatty liver disease), which is life-threatening. Any feline weight-loss plan should be gradual and, ideally, vet-supervised.
1. Switch from free-feeding to measured meals
A bowl left full all day is the classic cause of feline obesity. Move to measured portions at set times so you know exactly what your cat eats.
2. Feed more protein, fewer carbs
Cats are obligate carnivores. Higher-protein, lower-carbohydrate food — often wet food — keeps them fuller and supports muscle while losing fat. Your vet may suggest a weight-management diet.
3. Make them work and play for food
Puzzle feeders, food-dispensing toys and short daily play sessions turn eating into activity and burn calories. Even 10 minutes of chasing a wand toy helps.
4. Lose weight slowly, with the vet
Aim for a gentle, steady loss — often just 1–2% of body weight per week or less — and check in with your vet, who can set a safe target and rule out medical causes.
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Open the weight calculatorFrequently asked
Why can't a cat lose weight quickly?
Rapid weight loss or not eating can trigger hepatic lipidosis (fatty liver disease), which is life-threatening in cats. Weight loss must be gradual and vet-guided.
What's the best food for cat weight loss?
Higher-protein, lower-carb food (often wet) keeps cats full while preserving muscle. Your vet may recommend a specific weight-management diet.
How do I stop free-feeding?
Move to measured meals at set times instead of a permanently full bowl, so you control exactly how much your cat eats.
How do I exercise an indoor cat?
Puzzle feeders, food-dispensing toys and short daily wand-toy play sessions turn feeding into movement and burn calories.