A cat that stops eating is one of the most worrying situations a pet owner can face. Unlike dogs, cats cannot go without food for long periods — a cat that refuses to eat for more than 24 to 48 hours is at risk of developing a serious liver condition called hepatic lipidosis.
In this guide we explain the most common reasons why cats stop eating, when to see a vet and practical strategies to get your cat eating again.
How Long Can a Cat Go Without Eating?
A healthy adult cat can survive without food for approximately 1 to 2 weeks if they have access to water. However, after just 24 to 48 hours without food, cats begin breaking down fat reserves for energy. This process can overwhelm the liver and cause hepatic lipidosis — also known as fatty liver disease — which is potentially fatal without veterinary treatment.
This is why a cat that stops eating is always a cause for concern, regardless of how healthy they appear otherwise.
Most Common Reasons Why Cats Stop Eating
1. Illness or pain
Loss of appetite is one of the most universal symptoms of illness in cats. Virtually any health condition — from a minor infection to a serious disease — can cause a cat to stop eating. Common medical causes include:
- Upper respiratory infections — a blocked nose prevents cats from smelling food, which eliminates their appetite
- Dental disease — tooth pain or gum inflammation makes eating painful
- Kidney disease — one of the most common causes of appetite loss in senior cats
- Gastrointestinal problems — nausea, constipation, inflammatory bowel disease
- Hyperthyroidism or hypothyroidism
- Cancer
- Pancreatitis
2. Stress and anxiety
Cats are extremely sensitive to changes in their environment. Stressful events that commonly cause appetite loss include:
- Moving to a new home
- Introduction of a new pet or person
- Changes in routine — new work schedule, renovation noise
- Boarding or veterinary visits
- Loss of a companion animal or owner
3. Food issues
Sometimes the problem is the food itself rather than the cat:
- Changed food — cats are creatures of habit. A sudden change in brand, flavor or texture can cause food refusal
- Spoiled food — cats have highly sensitive noses and will reject food that smells off, even slightly
- Temperature — many cats refuse cold food straight from the refrigerator
- Dirty bowl — cats are fastidious and may refuse food from a bowl that smells of soap or old food
- Food location — a bowl placed too close to the litter box will be avoided
4. Recent vaccination or medication
A temporary loss of appetite is a common and normal side effect of vaccines, lasting 24 to 48 hours. Some medications also reduce appetite as a side effect. If your cat stopped eating shortly after a vet visit or medication change, this is likely the cause.
5. Pickiness and food boredom
Some cats develop strong food preferences and will refuse anything outside their preferred brand or flavor. Other cats become bored of eating the same food every day. This is more common in cats fed exclusively wet food with strong flavors.
6. Environmental factors
- Competition with other pets at the food bowl
- A bowl that is too deep — whisker fatigue from touching the bowl sides
- Eating area that is too noisy or busy
- Extreme heat — cats naturally eat less in very hot weather
When to See a Veterinarian Immediately
Contact your veterinarian without delay if your cat:
- Has not eaten for more than 24 hours — especially in overweight cats, who are at higher risk of hepatic lipidosis
- Has not eaten for more than 48 hours regardless of weight
- Shows additional symptoms alongside appetite loss — vomiting, diarrhea, lethargy, hiding, difficulty breathing, weight loss or jaundice (yellowing of skin or eyes)
- Is a kitten — kittens have no fat reserves and can deteriorate rapidly without food
- Is a senior cat (over 10 years) — older cats are more vulnerable to the complications of not eating
How to Get Your Cat Eating Again
If your cat has been checked by a vet and no underlying illness is found, these strategies often help:
Warm the food
Warming wet food to body temperature (around 37°C) releases aromas that stimulate appetite. Microwave for 5 to 10 seconds and stir thoroughly — always check the temperature before serving to avoid burns.
Try a different food
Offer a different protein — if your cat normally eats chicken, try fish or turkey. A new flavor can reignite interest in eating. Some cats respond well to a small amount of low-sodium chicken broth added to their food.
Use a flat plate instead of a bowl
Whisker fatigue — the discomfort cats feel when their sensitive whiskers repeatedly touch the sides of a deep bowl — is a surprisingly common cause of food refusal. Switch to a flat plate or a wide shallow bowl.
Hand feeding
Offering food directly from your hand can encourage a reluctant eater, especially cats experiencing stress. Your scent on the food provides reassurance.
Appetite stimulants
Your veterinarian may prescribe an appetite stimulant like mirtazapine if your cat is not eating due to nausea or illness. Never use appetite stimulants without veterinary guidance.
Reduce stress
If stress is the cause, a Feliway diffuser in the eating area can significantly reduce anxiety and restore normal eating behavior.
¿Por qué mi gato no come?
Un gato que deja de comer por más de 24 a 48 horas necesita atención veterinaria urgente — el ayuno prolongado en gatos causa lipidosis hepática, una enfermedad del hígado potencialmente fatal. Las causas más comunes son enfermedades, estrés, cambios en la dieta y problemas con el ambiente de alimentación.
Si tu gato rechaza la comida, intenta calentarla a temperatura corporal, ofrécela en un plato plano en lugar de un bowl profundo y asegúrate de que el área de alimentación esté alejada de la caja de arena y sea tranquila. Si no come en 24 horas, consulta a tu veterinario.
Frequently Asked Questions
Is it normal for cats to skip a meal occasionally?
Occasionally skipping a single meal is not unusual, especially in hot weather or after a stressful event. However, if your cat misses more than one meal in a row or shows any other symptoms, veterinary attention is warranted.
My cat is drinking water but not eating — is that better?
A cat drinking water but not eating is slightly less urgent than one refusing both food and water, but it still requires attention within 24 hours. Continued hydration buys some time, but the liver damage risk from not eating remains.
Can I force feed my cat?
Never attempt to force feed your cat without veterinary guidance. Improper force feeding can cause aspiration pneumonia — a potentially fatal condition where food enters the lungs. If your cat needs assisted feeding, your vet will show you the correct technique using a syringe.
Do cats stop eating when they are dying?
Loss of appetite in the final days of life is common in cats with terminal illness. If your cat is elderly, has a known serious condition and has stopped eating alongside other decline signs — severe lethargy, withdrawal, labored breathing — contact your veterinarian to discuss quality of life and palliative care options.
Recommended Products
These products help stimulate appetite and reduce stress in cats that are not eating:
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Pawpedia Editorial Team
Reviewed against ASPCA and AKC veterinary guidelines · Updated May 2026
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