Instructables
Picture of Kidney Support Homemade Cat Food

My 15-year-old cat (Update 8/2014: Tony has just turned 18 years old!) has had kidney issues for a few years now. Over the last couple of years, I have managed it well by giving him homemade low-protein cat food made from recipes by established veterinary nutritionists, and under my vet's supervision. I choose not to buy the prescription canned food because of the numerous recalls that have plagued pet food in recent years, plus even though the food I make is expensive, it still costs less in the end than canned food, and I control the ingredients.

The process is time and labor intensive, but I use all parts of what I cook. I hope this is useful for you if you have an ailing cat as well. It may also be useful to you if you want to learn how to slow-cook chicken and use up all the parts of it.

DISCLAIMER: This is not meant to substitute for veterinary medical advice. It is a guide to how I prepare a recipe my vet recommended, along with other holistic wisdom I picked up along the way. Your mileage may vary, but please only proceed under medical supervision.

 
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Step 1: Ingredients & Supplies

To make the food, you will need:

- Chicken
- Brown rice* (I have recently moved to quinoa; see Step 3 for more details)
- Salt
- Salt substitute (potassium chloride)
 - Baking soda (calcium carbonate) or calcium carbonate supplements
- Taurine
- Bone meal
- Multivitamins - I use these: Nu-Cat Senior
- Vitamin K
- A good blender
- Mortar & pestle

Optional but recommended:
Renal Essentials - Kidney Support for Cats
CoQ10

For an explanation of the recipe as well as others for both kidney issues and many others, you can read the book Home-Prepared Dog and Cat Diets, which is the top-recommended resource for this knowledge. My vet originally provided me with recipes from the previous edition, but I bought this edition and have been using it as my guide with my vet's approval.
Greenies6 days ago

Linoleic acid is an essential fatty acid for cats. UC Davis Veterinary Nutritional Services recommends corn oil over animal fat because it is higher in linoleic acid so you don't have to add as much. I thought safflower oil was higher in linoleic acid but the type generally available is the high oleic (not linoleic) type.

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lalalaux1 year ago
Baking soda is NOT calcium carbonate! Baking soda is sodium bicarbonate. It's a salt and nothing at all like calcium carbonate. I have no idea how this affects a cat, but I would NOT give it to mine, especially if you already have regular salt (sodium chloride) as well as lite salt (potassium chloride) in the recipe.

The only places I've seen in regular stores to find calcium carbonate is in the vitamin section in the form of calcium pills or powder for people. However, even there it is hard to find the pure stuff without the added vitamin D, and I also do not know how extra vitamin D in this form affects a cat's system. I would recommend more research if one were to go this route, or to simply buy a bottle of pure calcium carbonate powder from some place like amazon.

I love that you do this for your cat, but I felt strongly that I should mention this. Thank you for the instructable.

I have the same concern about baking soda being listed. I think the author meant calcium carbonate but one of the photos shows a box of baking soda. The author said; "Feel free to ask questions, and I will modify this article if I've left anything out". Unfortunately the recipe hasn't been changed and the author has not responded to your comment which is now a year old. I hope that no cats have been harmed by people using baking soda in the recipe instead of calcium carbonate!

Greenies6 days ago

I appreciate your tutorial, but I have several questions and comments.

I did not see a weight or measure for the chicken so it would be helpful to how what the quantity is (lbs/ounces) per batch.

It would be helpful to know how many servings one batch makes (assuming an average 8 lb cat).

I also agree with the comment below that baking soda is NOT the same as calcium carbonate. Calcium carbonate would be used to add calcium to the food. The only reason I can think of to add baking soda (sodium bicarbonate) to the food would be to help counteract an acidic condition in the cat since baking soda is alkaline. 1/8 tsp of baking soda contains 160 mg sodium and 1/8 tsp salt contains 250 mg sodium. Chicken also contains some naturally occurring sodium so it's hard to tell how much sodium would be in each serving. If calcium isn't added to the batch then it seems like it would be lacking in calcium (it also helps helps counteract phosphorus). I would caution anyone thinking of using this recipe to ask their vet about the use of baking soda in it instead of calcium carbonate before they try it on their cat(s).

You said that your recipe called for canola oil, but instead you are using chicken fat. UC Davis' Veterinary Medicine Nutritional Support Service, uses corn oil in their prescription diet recipes because it is rich in the essential fatty acid, linoleic acid. They say; "Other fat sources (canola oil, butter, etc.) are lower in linoleic acid, and larger amounts are needed to meet this requirement. These fat sources are sometimes used in diet formulations with higher fat levels, but ingredients are not directly interchangeable due to the variation in fatty acid content." Unless canola or corn oil are organic they are gmo, so I wouldn't use them. Safflower oil is higher in linoleic acid than corn oil, so I might use organic cold pressed safflower oil. But I'd also want to use Nordic Naturals Omega-3 for pets to insure adequate omega 3 fatty acids.

Because I am not comfortable with the ingredients in my cat's commercial prescription diet food I am interested in making the food myself, but I don't want to cause more harm to my cat than good. For additional guidance I found the BalanceIT website which was founded by a board certified veterinary nutritionist. You can play around with their free 'Autobalancer' tool to add ingredients that you want in your cat's food and then you can print out a balanced recipe that uses their complete vitamin/mineral supplement (UC Davis uses it too). If you want use their 'Free Recipe Generator' which will generate a renal diet for your cat based on age, weight, health conditions, etc., they will contact your vet for permission to do so and then their veterinary nutritionist will help you with that. Their renal diet uses their BalanceIT Feline K vitamin/mineral supplement which is low in phosphorous and sodium and higher in potassium and other nutrients CKD kitties need.

catlily8 months ago
My cat demolished it and he looks really healthy. Thanks!
sarahsmommy9 months ago

I loved your advice and detailed instructions. Especially for making broth/ stock (never done it before) and for making your own bone meal. Seems silly I didn't think of it before.

The free-range TJ's chicken is just great. Tastes much better. I followed the advice to "supplement" with gizzards, hearts, and liver (chicken). I sautéed some of these and made a "vitamin-mineral slurry" before blending with the meats. Cat loved it!

Oh- and I baked the cut up chicken and cut the meat into shreds. She ate some but she's still nauseous.

Important to note that Sodium Bicardbonate (baking soda) will simply not satisfy the calcium additive required for cat food. Tums tablets, however--would. Or the crushed bone meal.

Perhaps a cat in kidney failure/ renal disease would enjoy the stomachic properties of Na(CO3-)2 but …one would have to ensure the dosing is appropriate. (And most kitties would turn up their nose).

Crused tums worked for me. Or - Vit b12 tablets contain (mine do) Ca CO3.

I omitted the rice due to the grain controversies. Along with fish and canned and other variety (e.g. ground beef/ beef liver combo), she appears to enjoy the new homemade foods. Thanks!!!

lizzyanny2 years ago
A great recipe. thanks! In regards to not using rice because of the arsenic levels recently discovered; I read the Consumer Reports article and they said the high arsenic rice was rice from the southern USA where DDT was used for so many years in the production of cotton. Rice from California and the Eastern coumtries (Thailand, India etc) have a much lower arsenic content.
Rm-12682 years ago
This s a great recipe, and very easy to understand. I've been looking for a good recipe for my cat. Thank you.
sunshiine3 years ago
I really like this! Thanks for sharing.
susanrm (author)  sunshiine3 years ago
Thank you!