Reduced appetite in a cat deserves early attention because prolonged inadequate intake can lead to serious complications. Contact a veterinarian the same day if your cat has eaten little or nothing for about 24 hours, and sooner for other concerning signs.
Written or medically reviewed by Dr. Susset Diaz Castillo, DVM, PhD. Last reviewed: 2026-08-27.
Quick Summary: Reduced appetite in a cat deserves early attention because prolonged inadequate intake can lead to serious complications. Contact a veterinarian the same day if your cat has eaten little or nothing for about 24 hours, and sooner for other concerning signs.
A cat with inappetence eats less than usual or refuses food. This is a symptom rather than a diagnosis. Cats may reduce intake because of nausea, pain, dental disease, congestion, gastrointestinal disease, organ disease, medication effects, or stress.
Prolonged inadequate calorie intake can contribute to hepatic lipidosis, particularly in overweight cats. The timing and risk vary, so waiting several days for appetite to return is not a safe plan. Kittens, seniors, cats with diabetes or other chronic disease, and cats that are overweight should receive especially prompt advice.
A cat may still take treats despite clinically important nausea or pain. Hiding, reduced grooming, or a change in litter-box use can be relevant even when dramatic signs are absent.
Record the last normal meal and the approximate amount eaten since then. Note vomiting, diarrhea, drooling, bad breath, congestion, weight change, yellow discoloration, unusual thirst, urine output, straining, and possible access to string, plants, medication, or chemicals. Do not pull on string seen at the mouth or rectum because internal tissue may be injured.
Brief monitoring may be reasonable after one missed meal in an otherwise healthy adult cat that remains alert, comfortable, drinking, urinating, and free of vomiting or other concerning signs. Offer the cat's familiar food in a quiet location; warming it slightly may increase aroma. Avoid force-feeding, sudden diet changes, human medication, leftover prescriptions, supplements, or unprescribed appetite stimulants.
Contact a veterinarian the same day if intake remains markedly reduced or reaches about 24 hours. Seek advice sooner for kittens, seniors, overweight cats, cats with diabetes or another chronic condition, or whenever the cat seems unwell.
Arrange assessment if:
Go to the nearest veterinary emergency hospital without waiting for a house-call appointment if your cat has:
A veterinarian will usually review food intake and exposures and perform a physical examination, including the mouth, hydration, abdomen, temperature, and weight. Depending on findings, testing may include bloodwork, urinalysis, thyroid testing, fecal testing, radiographs, ultrasound, or other diagnostics.
Treatment is directed at the cause and may include veterinarian-selected nausea control, fluids, pain relief, nutritional support, dental care, or treatment of an identified disease. Cats needing a feeding tube, intensive monitoring, intravenous therapy, advanced imaging, endoscopy, or surgery require hospital or specialty referral.
VestaSoul — My Vet At Home® is a mobile veterinary house-call practice serving select areas of Miami-Dade County and select areas of Broward County. When an appointment is available and the cat is stable enough for home care, the team may be able to perform an examination and selected diagnostics in the home. Same-day availability is not guaranteed. A house call is not a substitute for an emergency hospital, and some conditions require transport, hospitalization, advanced imaging, endoscopy, surgery, or specialty care.
Contact a veterinarian the same day if a cat has eaten little or nothing for about 24 hours. Seek advice sooner for kittens, seniors, overweight cats, cats with diabetes or other chronic disease, or any cat with vomiting, weakness, pain, breathing changes, or another concerning sign.
Stress can contribute to reduced intake, but it should not be assumed to be the cause when a cat stops eating. Dental pain, nausea, systemic disease, and obstruction can look similar, and prolonged inadequate intake carries additional risk.
Offer familiar food in a quiet setting, keep fresh water available, and record intake and litter-box output. Avoid force-feeding, sudden diet changes, and any medication or supplement not directed by a veterinarian for that cat.
Dr. Susset Diaz Castillo, DVM, PhD is the veterinarian behind VestaSoul — My Vet At Home®. VestaSoul — My Vet At Home® is a mobile veterinary house-call practice serving select areas of Miami-Dade County and select areas of Broward County. Learn more at Meet the Vet.
This article is for general educational purposes only and is not a substitute for an in-person examination, diagnosis, or treatment by a licensed veterinarian. If your pet is showing severe or rapidly worsening symptoms — such as collapse, difficulty breathing, uncontrolled bleeding, seizures, suspected poisoning, or an inability to urinate — go to the nearest emergency animal hospital immediately. VestaSoul — My Vet At Home® is an appointment-based, non-emergency practice and does not provide emergency or after-hours care.
VestaSoul — My Vet At Home® is a mobile veterinary house-call practice serving select areas of Miami-Dade County and select areas of Broward County.