- One-sentence answer
- A sudden appetite drop in cats is common but never trivial; check stressors and routine first, but contact your vet quickly if it lasts over 24 hours or your cat shows other warning signs.
- Possible reasons
- Stress from changes: new pet, visitor, moving furniture, or travel can shut down appetite fast.
- Food or bowl issues: stale kibble, new flavor, deep/whisker-stress bowls, or strong dish detergent odors.
- Environment or schedule shifts: feeding time moved, litter box placed nearby, noisy appliances started.
- Minor stomach upset: rapid diet change, hairballs, or eating too fast earlier in the day.
- Pain or illness: dental pain, nausea, fever, kidney/GI issues—especially in seniors or cats with history.
- What to observe and simple non-medical fixes Track specifics for 10–14 days, even if appetite returns: time of day appetite dips, food type refused, room used, events just before refusal (vacuum, doorbell, new candle scent). Note water intake, litter box output, hairballs, and energy levels. A quick diary helps you spot patterns and gives your vet solid data.
Day routine: keep feeding windows consistent (e.g., 7:30am and 6:30pm). Offer food in a quiet, low-traffic corner away from litter boxes and loud machines. Keep sessions to 20–30 minutes; remove leftovers to prevent stale smells. Evening routine: brief play (5–8 minutes of wand chase), then offer warmed wet food (10–15 seconds in the microwave—stir well) to boost aroma.
Environment tweaks: try a shallow, wide bowl or a flat plate to reduce whisker stress. Wash dishes with unscented soap and rinse thoroughly. Store kibble airtight; rotate a few proven flavors but avoid abrupt switches—blend new food over 5–7 days. Use a feeding mat to define the space and reduce sliding noises. If you’ve recently moved furniture, re-establish a predictable feeding spot for a week.
Attention and reinforcement: don’t hover or plead during meals; quietly set the bowl down and step away. If your cat sniffs and walks off, wait 20–30 minutes and remove food without commentary. Reward desired behavior—calm eating—with gentle praise after they finish, not during. My own shy tabby skipped dinner for two nights after a new diffuser scent; removing it and warming food brought her back within a day.
- When to consult a veterinarian
- No eating for 24 hours (12–18 hours for kittens or diabetic cats), or eating very little with lethargy.
- Sudden drooling, vomiting, diarrhea, or signs of nausea (lip smacking, crouching, frequent swallowing).
- Pain signs or dental red flags: pawing at mouth, bad breath, bloody saliva, chewing on one side only.
- Rapid weight loss, dehydration (tacky gums), or refusal of favorite treats/wet food.
- Senior cats, known medical conditions, recent surgery/meds, toxin exposure, or foreign-object risk.
- Disclaimer
- This is general guidance, not medical advice; when in doubt or symptoms persist, contact your veterinarian promptly.