Cat · Guide

Is my cat overweight?

Feel along the ribs — they should be easy to find under a thin fat layer. From above, look for a waist behind the ribs. A small primordial pouch on the belly is normal in cats and often mistaken for fat. Failing the rib and waist checks usually means overweight.

The belly flap is normal

That loose swing of skin on a cat's lower abdomen is the primordial pouch. It's a normal anatomical feature, present even on lean cats, and it is not a sign of being overweight. Judge by ribs and waist instead.

Why cat weight loss must be slow

Cats cannot safely lose weight quickly. Rapid restriction can trigger hepatic lipidosis, a serious liver condition. Any feline weight-loss plan should be designed with a vet rather than improvised.

This is genuinely different from dogs, and it's the reason crash-dieting a cat is dangerous rather than merely ineffective.

When losing weight is the warning

Unexplained weight loss in cats is a significant sign — commonly linked to hyperthyroidism, diabetes or kidney disease, all of which are far more manageable when caught early. A cat losing condition without a diet change needs a vet, not a wait-and-see.

Check your own pet — freeSnap a few photos, get a wellness score in minutes

A wellness check, not a diagnosis — and never a replacement for your vet. If something seems wrong with your animal, see a veterinarian.

Common questions

Why does my cat have a saggy belly?

That's the primordial pouch — a normal feature present even in lean cats. It isn't a reliable sign of being overweight.

How do I help my cat lose weight safely?

Only with veterinary guidance. Cats can develop serious liver problems if they lose weight too quickly.

Is my cat losing weight a bad sign?

Unexplained weight loss in cats warrants a vet visit — it's associated with several treatable conditions that respond much better to early detection.