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Feeding a Cat With FIP (Feline Infectious Peritonitis)


Ensuring your FIP cat maintains a proper diet is crucial to prevent the risk of fatty liver disease. Cats typically require a minimum of 200 calories per day.

Inappetence, or a lack of appetite, often emerges as one of the initial symptoms in cats afflicted with FIP. Similar to humans, cats tend to lose interest in food when they are unwell. However, unlike humans, cats cannot safely abstain from eating for extended periods, as this can lead to the development of fatty liver disease, which can be life-threatening.

FIP-infected cats frequently experience symptoms such as nausea, fever, or anaemia, any of which can lead to a loss of appetite. While addressing the underlying issue is crucial for restoring their appetite, it's essential to ensure they receive proper nutrition in the meantime.

Prioritize Quantity over Quality, Especially Initially


When your cat isn't feeling well, your primary goal should be to provide them with sufficient calories. During this period, it's acceptable to offer your cat whatever they are willing to eat, even if it's not the healthiest option or not even cat food.

Many cat parents and FIP support groups have found that their cats often prefer gravy over solid food due to its convenience to consume. In cases where cats refuse cat food, some have resorted to offering jarred baby food, as long as it's free from any seasonings (onions and garlic are toxic to cats). Some cats may even prefer to lick food from their owner's finger rather than eating from their regular bowl.

Other suitable options include boiled chicken, boiled chicken hearts and livers, homemade chicken broth (without onions or garlic), sandwich meats/cold cuts, tuna, sardines, anchovies, and salmon.

Goat's milk, which is digestible for cats, can be a good source of calories and hydration. It can be found in most grocery stores or as a reconstitutable powdered form. Kitten Milk Replacer (KMR) is another option that most cats will accept.

Nutri-Cal or similar high-calorie pastes can also be useful but should not be given regularly or for an extended period due to their high Vitamin A content. Follow the manufacturer's instructions and limit use to two weeks or less.


These feeding suggestions are temporary measures to encourage an inappetent cat to eat. Once your cat's health improves, you can gradually transition them back to a balanced feline diet which they were used to before FIP infection.


Feeding Tips and Tricks for FIP Cats

  • Warm the food: Slightly warming the food enhances the aroma and may entice your cat to eat.

  • Warm the cat: FIP cats often run a fever, which can make them feel cold and uninterested in eating. Wrapping your cat in a blanket can provide the warmth needed to stimulate their appetite.

  • Variety: Be prepared to offer a variety of foods at each meal, as FIP cats' preferences can change quickly.

  • Syringe-feeding: On days when your cat refuses to eat entirely, syringe-feeding may be necessary. A/D canned food or a thick pate consistency is suitable for syringe-feeding. Be cautious not to make the food too runny, as this can lead to aspiration pneumonia. If you're new to syringe-feeding, consider seeking guidance from your veterinarian.

  • Frequent, Small Meals: Offer your cat small, frequent meals throughout the day rather than large portions. This can help maintain their energy levels and prevent weight loss.

Appetite Stimulants for FIP Cats

  • Cats with FIP may experience a decreased appetite. Your veterinarian may prescribe appetite stimulants to encourage your cat to eat. Follow your vet's instructions carefully when using these medications.

Anti-Nausea Medication for Cats with FIP

  • Cerenia: This medication is frequently prescribed by veterinarians to alleviate nausea in FIP cats, as indicated by symptoms such as drooling, exaggerated chewing, or a lack of interest in food.

  • Slippery Elm Bark: An all-natural anti-nausea remedy available in health stores, vitamin shops, pharmacies, and some grocery stores. It requires preparation at home before administering to your cat.


Remember that FIP is a complex and often unpredictable disease, and it's essential to work closely with us at The FurPurr and your veterinarian to provide the best care possible for your FIP cat. We can offer guidance on managing your cat's specific symptoms and nutritional needs. Additionally, keep your cat comfortable and monitor their quality of life to make informed decisions about their care.

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