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Appetite Support for Cats with FIP: Practical Feeding Advice

Just like us humans who lose our appetite when sick, cats battling Feline Infectious Peritonitis (FIP) often experience a drastic decrease in their desire to eat. 


However, proper nutrition for FIP cats is just as important as their antiviral treatment. Food helps build a stronger immune system, making recovery faster and more effective.


So, what to feed a sick cat with FIP? And what foods should you avoid? Here's everything you need to know—complete with practical feeding tips and guidance from CureFIP GCC.




Why Is Nutrition Important During FIP Treatment?

Proper nutrition plays a crucial role in helping your cat recover from FIP. While antiviral medications like GS-441524 are essential for stopping the virus, your cat’s body also needs fuel—through food—to heal and fight back. 


Cat food for FIP treatment should therefore support immunity, digestion, and organ function.


That’s why even if your cat refuses to eat, you need to find safe and creative ways to encourage feeding without adding stress or discomfort.




Best Types of Food: Wet vs. Dry, High-Protein, Low-Carb

During FIP treatment, it's recommended to serve food that is

  • high in protein,

  • easily digestible,

  • low in carbohydrates, and

  • free from lysine (which may interfere with immune function).


Here are some of the best options.


  1. Steamed Chicken

Simple, clean, and gentle on the stomach, steamed chicken is a great choice. It’s high in protein, low in fat, and easy to digest. Just be sure to avoid any seasoning and shred the chicken into small pieces for easier chewing.


  1. Steamed Fish (e.g., Salmon)

Cats love the smell of fish, so this can help stimulate their appetite. Salmon, in particular, contains Omega-3 fatty acids that support the immune system and reduce inflammation.


  1. Dry Food

If your cat is already used to dry kibble, you can still serve it—preferably one that’s high in protein and grain-free. To make it more appealing and easier to chew, soften the kibble with warm water or homemade chicken broth.


  1. Wet Food

Wet food is especially helpful for cats with FIP as it keeps them hydrated and is easier to digest. Choose flavors with strong aromas to awaken their appetite, and opt for complete and balanced formulas.




Safe Appetite Stimulants and Supplements

If your cat continues to refuse food, certain supplements and medications—used under veterinary supervision—can help:

  • Vitamin B12: Boosts red blood cell production and appetite.

  • Salmon Oil: Strengthens immunity and supports heart, eyes, and joints.

  • Gabapentin: Used for managing pain, anxiety, or seizures.

  • LiverRX: Protects liver health during FIP medication.

  • KidneyRX: Supports kidney function and reduces toxin buildup.

  • HeartRX: Helps maintain heart health under stress.




Foods and Treats to Avoid During Treatment

There are no strict dietary restrictions for cats with FIP, but certain foods are toxic to cats in general and must be avoided, including

  • Onions and garlic: Damage red blood cells.

  • Chocolate: Contains theobromine, toxic to cats.

  • Grapes and raisins: Can lead to kidney failure.

  • Raw eggs, meat, or fish: May contain harmful bacteria.

  • Caffeinated foods and drinks: Cause overstimulation and other issues.

  • Dairy products: Most cats are lactose intolerant.

  • Bones: Can cause choking or internal injury.


Always stick to cat-safe ingredients and consult a vet if unsure.



Adjusting Diet During GS-441524 Treatment Phases

During the antiviral treatment phase with GS-441524, your cat's organs are under extra stress, especially the liver and kidneys. You might need to

  • switch to low-phosphorus and low-sodium diets if kidney values are elevated,

  • offer wet food more frequently to ensure hydration,

  • use liver-supporting supplements like LiverRX when recommended, or

  • avoid high-fat diets that could overwork the liver


Feeding during this stage should be gentle, consistent, and monitored regularly.



Sample Feeding Routine and Hydration Tips

Every cat is different, but here’s a sample routine you can adapt.


Morning

  • Offer warm wet food or shredded steamed chicken.

  • Mix in supplements (if prescribed).

  • Ensure access to fresh, clean water.


Afternoon

  • Offer a light snack (e.g., softened dry food).

  • Use a feeding syringe only if the cat refuses to eat and is getting weaker.


Evening

  • Repeat a warm meal with fish or chicken.

  • Encourage hand-feeding if the cat's appetite is still low.

  • Rehydrate using unsalted chicken broth if water intake is poor.




How CureFIP GCC Helps Cat Owners

Feeding a cat with FIP is not easy—but you're not alone. At CureFIP GCC, our team of FIP specialists offers personalized feeding advice depending on your cat’s condition and response to treatment.


From daily nutrition planning to supplement suggestions and hydration tracking, we're here to support you every step of the way. Just send us a message via WhatsApp, and we’ll walk you through it—compassionately and knowledgeably.




Final Thoughts

Food is healing. While your cat may not be in the mood to eat, adequate nutrition for FIP cats is critical for survival. Whether it's hand-feeding warm chicken or offering a favorite wet food, every bite helps.


If you ever feel stuck, overwhelmed, or unsure what to feed a sick cat with FIP, reach out to CureFIP GCC. Together, we’ll help your cat fight FIP with strength—and love.

 
 
 

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