Cat is allergic to everything... what is there to feed her

I have a 5 year old cat, who is allergic to EVERYTHING. She is severely allergic to grain and poultry. She was on a prescription high protein diet for a while but did not like it. She is currently eating Weruva wet food and Rachael Ray's Zero Grain dry food. She gets a pouch of weruva in the morning and half a can of weruva at night and half a cup of rachael rays dry food to munch on throughout the day. She has the start of Kidney disease and also gets miralax every day due to her not being able to digest food properly. She's starting to gain too much weight and i'm worried its the food. What else is out there that she can have? 

nickinegreb said:

I have a 5 year old cat, who is allergic to EVERYTHING. She is severely allergic to grain and poultry. She was on a prescription high protein diet for a while but did not like it. She is currently eating Weruva wet food and Rachael Ray's Zero Grain dry food. She gets a pouch of weruva in the morning and half a can of weruva at night and half a cup of rachael rays dry food to munch on throughout the day. She has the start of Kidney disease and also gets miralax every day due to her not being able to digest food properly. She's starting to gain too much weight and i'm worried its the food. What else is out there that she can have? 

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I think she would do better on wet diet.

I posted links to some limited ingredient diets good for cats with food sensitivities and allergies here: http://www.thecatsite.com/t/301848/sensitive-stomach-possible-causes-and-possible-foods

Miralax is for constipation, not for digestive issues. Did the vet recommend using Miralax? Are you dissolving the Miralax dose in water first before mixing it into canned food? Miralax works by drawing water from the body into the digestive tract. If the body is already dehydrated to begin with, Miralax will just make the problem worse.

Thank you for the information. The vet had suggested the miralax due to her excessive constipation. The Miralax is the only thing that helps that. I have tried to wean her off of it but it was not successful. I usually just put the poweder on her wet food. I never thought of mixing it in water first. I will give that a try. 

@nickinegreb, you say your kitty is allergic to everything. What are her symptoms of said allergy?

I agree that something like Nature's Variety might work. The NV canned rabbit seems to be well tolerated by many cats with allergies. They also make a limited ingredient lamb canned food. Some prescription diets for allergies really aren't that bad, such as Hill's d/d feline canned venison and Royal Canin's Selected Protein canned foods in rabbit or venison.

Also, I typically recommend that cats with chronic constipation come off of dry food. It is binding for these kitties. You may see a marked improvement in her stools by feeding an all wet diet with extra water added to the food. Chronic constipation that is not addressed successfully can lead to more problems later down the road. Feline megacolon is a serious condition typically caused by chronic constipation. Trust me, you don't want your cat to get this.

nickinegreb said:

 
Thank you for the information. The vet had suggested the miralax due to her excessive constipation. The Miralax is the only thing that helps that. I have tried to wean her off of it but it was not successful. I usually just put the poweder on her wet food. I never thought of mixing it in water first. I will give that a try. 

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Yes, the Miralax has to be dissolved in water before it can be given. Just like how Humans have to dissolve the Miralax dose in a full glass of water before drinking it I know canned food has water in it already but it's still best to dissolve the Miralax in a few teaspoons of water first to avoid dehydrating the cat's body which would likely just make the constipation worse.