The packet's feeding guide is written for an average cat who goes outside, so for a neutered indoor cat who gains easily, the honest starting point is not what she weighs today but the figure her vet says she should carry. Everything after that is measurement and patience.
Feed for the Weight She Should Be
Ask your vet to confirm her ideal weight, then feed the amount the food's guide suggests for that target weight, weighed out precisely each day with treats included in the total. Weighing matters more than any other single habit here: scoops drift, handfuls grow, and a cat who gains easily lives on the difference. Expect the right amount to look smaller than the bowl she is used to — that is the point, and it is why the change should be checked against her condition rather than your eye.
Why She Needs Less Than the Guide's Average
Neutering and indoor life both lower the energy a cat burns: no roaming, no patrolling a territory, fewer calories spent on warmth and movement. So adjust downward in small steps from the starting amount, reviewing her weight and body condition every few weeks, rather than cutting hard once. Small steps protect her muscle, keep hunger manageable, and tell you which amount actually holds her steady — the maintenance figure you are really looking for.
Meals, Puzzles and Scatter Feeding
Meals at set times beat grazing for a cat like this, because a bowl that is always down cannot be measured against a day. Split the day's food into two or three meals so she is never far from the next one. Deliver part of the ration through puzzle feeders and scatter feeding so the same calories take longer to earn and occupy more of her day. Hunger spent working is hunger she notices less, and a cat busy extracting lunch from a puzzle is not a cat shouting at the cupboard.
Slow Loss, Vet-Reviewed
Weight should come off slowly and steadily. A cat losing fast, or one who seems hungry to the point of distress — waking you, raiding bins, eating things that are not food — needs the plan reviewed with the vet rather than tightened at home. Rapid loss in cats carries its own risks, and distress is data: the deficit may be too steep, or something else may be driving the appetite. In KinsLe, Care Teams turns that weighed ration into a household record: whoever serves a meal marks it complete, timestamped, so nobody tops her up out of sympathy an hour later and the small downward steps stay measurable.