Start soft while you learn how she eats
For a newly adopted senior cat whose teeth and history are unknown, begin with a wet senior food in a smooth pate texture rather than dry kibble. A pate asks almost nothing of sore gums or loose teeth, it carries far more moisture than kibble, and older kidneys benefit from that extra water with every meal. Offer small amounts several times a day instead of one large bowl, because a cat who has come from a shelter or another home may eat cautiously at first, and frequent small meals let you see her appetite return in real time instead of guessing from a bowl left out all day.
Choose a food labelled complete for adult or senior cats so protein stays high enough to protect ageing muscle. Warm the pate very slightly and mash out any lumps, then set it in a shallow, wide dish that does not press on her whiskers while she works out whether eating hurts.
What her chewing is trying to tell you
With an unknown history, her mouth is the first thing to read. A senior cat who drops pieces, tilts her head to chew on one side, approaches the bowl eagerly then walks away, or paws at her mouth after a few bites is often signalling dental discomfort, not fussiness. Gum disease, worn or broken teeth, and sore mouths are common in older cats who have had little dental care, and they change what she can manage long before they change how hungry she feels.
Keep notes for the first week: which texture she finished, how long a meal took, whether she preferred food at room temperature, and whether she drank a normal amount. A cat who manages pate easily but struggles with chunks in gravy is giving you a clear texture answer. A cat who will not eat anything at all, even soft food offered warm, is giving you a different and more urgent one.
Building her first week's feeding routine
Feed in a quiet corner away from other pets for those first days, so competition or noise does not rush a cat who may already be eating through discomfort. Weigh her, or ask the shelter for her arrival weight, and recheck weekly at first — steady weight on a senior food tells you the amount is about right, while continued loss on food she enjoys means the calories or the underlying health picture need attention.
If she handles pate well, you can test one slightly firmer texture at a time, such as finely minced wet food, rather than jumping straight to kibble. Keep fresh water in more than one spot, since a cat who finds eating effortful sometimes drinks less too.
Book a vet visit soon after adoption even if she seems well. That first check should include her mouth, her weight, and basic blood work, because kidney and thyroid changes are common in senior cats and both affect what and how much she should eat.
When to call the vet sooner
Move that appointment forward if she refuses food for a full day, drools, has visibly bad breath with red gums, vomits repeatedly, loses weight quickly, or drinks and urinates far more than you would expect. Those signs in a senior cat with no known history deserve prompt attention rather than a wait-and-see week. Bring your feeding notes with you — what she ate, which textures failed, and when the chewing signs appeared — because that record often shortens the detective work considerably.
Once those first observations are gathered, keeping them in KinsLe through Care Teams means the person who feeds her morning and night is working from the same notes, so a missed meal or a new chewing sign is spotted by the whole household, not just one feeder.