Companion Animals

Feline Weight Management: Evidence-Based Welfare Approach

Obesity in cats causes diabetes, arthritis and hepatic lipidosis. Successful weight management requires veterinary support, appropriate caloric restriction and owner commitment.

Key Facts

Approximately 39-52% of UK cats are overweight or obese
A 5.5kg cat that should weigh 4kg is comparably overweight to a 90kg person at ideal 65kg
Cats should lose weight at no more than 0.5-1% of body weight per week to avoid hepatic lipidosis
High-protein, moderate-fat, low-carbohydrate diets support satiety during weight loss
Puzzle feeders increase physical activity and reduce feeding speed in obese cats

Welfare Considerations

Obese cats experience chronic musculoskeletal pain, reduced mobility and increased disease risk. Weight loss in cats must be gradual — crash diets cause hepatic lipidosis (fatty liver), a life-threatening condition. Cats losing weight require monitoring every 2-4 weeks and diet adjustment as weight changes. The welfare benefit of achieving and maintaining ideal body weight is substantial and measurable in activity level, grooming behaviour and disease incidence.

What You Can Do

Have your vet body-condition score your cat at every visit and set a target weight
Use measured portions rather than free-feeding — wet food supports satiety better than dry
Introduce puzzle feeders to increase activity and slow feeding pace
Monitor weight monthly with a home scale and chart progress
Seek veterinary advice immediately if a cat stops eating during weight loss