You are feeding a Domestic Shorthair too much when the cat's own outline changes: the waist disappears when viewed from above, the belly sags below the chest line from the side, and the ribs become difficult to feel without pressing through a layer of fat. Because a Domestic Shorthair is a mixed-breed cat rather than a cat bred to a standard, there is no official target weight to consult — the evidence is your individual cat's shape and weight trend, checked with your hands and a set of scales rather than by comparing with the cat next door.
Why mixed-breed cats need individual benchmarks
Domestic Shorthairs range from petite, fine-boned cats to big, naturally broad animals, so a number that means lean on one frame means overfed on another. What matters is change in the same cat over time: a waist that was there last season and is gone now, a collar sitting tighter, a jump onto the sofa that has turned into a scramble. Establish your cat's lean adult baseline when it is young and fit, in writing, because that personal record is the only benchmark this mixed-breed category honestly offers.
The three checks to run monthly
First, the top view: stand over your Domestic Shorthair and look for a waist curving in behind the ribs; a body that runs straight from ribs to hips, or bulges outward, signals surplus. Second, the side view: the abdomen should tuck up slightly toward the hind legs, and a low-swinging belly is different from the loose primordial pouch most cats carry — the pouch is a small flap of skin, while overfeeding fills it and spreads padding across the whole underside. Third, the rib check: run flat palms along the sides and feel for ribs under a thin fat layer, like feeling knuckles through a sheet. Record all three results with the monthly weight.
Where the extra food usually hides
For an indoor Domestic Shorthair, overfeeding rarely looks dramatic; it accumulates through free-fed dry food topped up whenever the level drops, treats handed out by several people, and portions poured by eye that slowly grow. Audit honestly for a few days: weigh the food offered, count every treat and scrap, and note who feeds and when. Indoor cats also burn less than their instincts assume, especially after neutering and as they settle into middle age, so a ration that suited an adolescent cat often overshoots a settled adult.
Trimming portions for a cat with no standard size
Reduce the daily amount gradually and recheck the waist and weight monthly, aiming for slow, steady loss rather than a crash diet, which is unsafe for cats. Replace some grazing with two or three defined meals so intake becomes visible, add short daily play sessions that mimic hunting before the evening feed, and use part of the measured ration in a puzzle feeder instead of adding treats on top. If several people feed the cat, agree one written daily amount and divide it between them, because uncoordinated kindness is the most common cause of the problem in shared homes.
When to involve the vet for a Domestic Shorthair
Ask your veterinarian to body-condition score your Domestic Shorthair at routine visits, since a professional set of hands calibrates your own checks against that individual frame. Book a visit if weight keeps rising on honestly measured food, or if gain arrives with increased thirst, changes in appetite or toileting, new lethargy, or a rapidly rounding abdomen. Bring your weigh-in record and feeding notes so the vet can separate a portion problem from a medical one quickly. Day to day, KinsLe's Care Teams let everyone in the home see which meals your cat has already had, each marked complete with its time, keeping one cat and many feeders on the same page.