A note from FatCatCatalog

We love chonky cats.
And we want them around forever.

FatCatCatalog exists to celebrate the larger-than-life personalities of generously proportioned cats. But celebrating your cat is not the same as ignoring their health — and we think it's important to be honest about that.

Important disclaimer

FatCatCatalog is not a veterinary service. We are a clothing catalog and cat appreciation community. Nothing on this site constitutes medical advice. If you have concerns about your cat's weight, diet, or overall health, please consult a licensed veterinarian. Your vet is the only one qualified to assess your individual cat's needs.

What the science says

From peer-reviewed research and veterinary institutions

An estimated 40–63% of domestic cats in developed countries are overweight or obese, making it one of the most common preventable health conditions in felines today. The consequences are serious, well-documented, and — importantly — often treatable when caught early with the help of a veterinarian.

Type 2 Diabetes
Each extra kilogram of body weight reduces insulin sensitivity by roughly 30%. Obese cats are significantly more likely to develop diabetes mellitus — and in many cases, early weight loss can lead to remission.
Osteoarthritis
Overweight cats are up to five times more likely to develop lameness or osteoarthritis. Excess weight places sustained pressure on joints, accelerating cartilage breakdown over time.
Heart & Respiratory Disease
Extra mass makes the heart work harder and can compress the chest cavity, reducing lung capacity. This shows up as fatigue, labored breathing, and reduced activity tolerance.
Hepatic Lipidosis
If an overweight cat stops eating — even briefly — the liver can rapidly mobilize fat in a way that overwhelms its processing capacity. This condition, known as fatty liver disease, can be fatal without prompt veterinary care.
Urinary Tract Disease
Obesity is associated with a higher incidence of feline lower urinary tract disease (FLUTD), including blockages that are potentially life-threatening, especially in male cats.
Shortened Lifespan
Studies consistently show that obese cats have shorter life expectancies than cats maintained at a healthy weight. The compounding effects of multiple obesity-related conditions contribute to earlier decline.
A word of caution on weight loss

Never put your cat on a crash diet or sudden caloric restriction without veterinary supervision. Rapid weight loss in cats can trigger hepatic lipidosis (fatty liver disease), a life-threatening condition. Any weight management plan for your cat should be gradual — typically no more than 1–2% of body weight per week — and designed specifically for your cat by a vet.

If you're concerned about your cat

Steps to take — starting with a vet visit
01
Talk to your veterinarian
A vet can assess your cat's body condition score (BCS), rule out underlying conditions like hypothyroidism that contribute to weight gain, and design a safe, individualized plan.
02
Ask about a therapeutic diet
Veterinary weight-loss diets are formulated to reduce calories while maintaining complete nutrition. Over-the-counter "light" foods vary widely in quality and may not be sufficient.
03
Monitor portion size
Free-feeding (leaving food out all day) is a common contributor to feline obesity. Your vet can calculate an appropriate daily caloric intake for your specific cat.
04
Encourage movement
Play sessions with wand toys, puzzle feeders, and vertical spaces all support activity. Even 10–15 minutes of interactive play per day makes a difference.
05
Schedule regular weigh-ins
Weight loss in cats should be slow and steady. Regular vet check-ins let you track progress and adjust the plan safely.
Sources & further reading
Cornell Feline Health Center — ObesityAAHA — Feline Fitness: Helping Your Cat Lose WeightPetMD — Obesity in Cats: Signs, Causes, and TreatmentUniversity of Illinois College of Veterinary Medicine — FAQs on Pet ObesityPMC — Canine and Feline Obesity: A Review of Pathophysiology, Epidemiology, and Clinical Management

FatCatCatalog is not affiliated with any of the above organizations. These links are provided solely as references to peer-reviewed research and guidance from accredited veterinary institutions.

Your cat deserves a long, loafy life.

We'll keep making clothes that fit the big ones. You keep scheduling those vet check-ins. That's the deal.

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