Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Dry Cat Food, 7-lb bag

By Blue Buffalo Natural Veterinary Diet
Rated 4.6364 out of 5 stars
Veterinary Diet Item
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This Item - Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Dry Cat Food, 7-lb bag
Rated 4.6364 out of 5 stars
$46.98Chewy Price

Spend $100 on select Vet Diet items, Get a $15 eGift Card

Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Wet Cat Food, 5.5-oz, case of 24
Rated 3.3643 out of 5 stars
$58.80Chewy Price

Spend $100 on select Vet Diet items, Get a $15 eGift Card

Hill's Prescription Diet k/d Kidney Care Chicken & Vegetable Stew Wet Cat Food, 2.9-oz, case of 24
Rated 4.3281 out of 5 stars
$50.99Chewy Price
Total Price: $0.00

About This Item

  • Kidney support canned cat food with controlled levels of protein to help manage your furry pal’s kidney workload.
  • Veterinary diet that also has controlled levels of phosphorus and sodium to help support kidney health for a happy and thriving cat.
  • Enhanced with DHA, glucosamine and chondroitin to support your pal’s healthy joint function and overall mobility.
  • Made without the grains many pet parents choose to avoid, making this holistic formula great for cats with sensitive tummies.
  • Prescription-only food made with the finest ingredients available that have both beneficial nutrition and a taste your furry best friend will love.
Play Video: Learn More About Blue Buffalo Natural Veterinary Diet From Our Team of Experts
Learn More About Blue Buffalo Natural Veterinary Diet From Our Team of Experts

About BLUE Natural Veterinary Diet®

A Natural Therapeutic Diet

Formulated by veterinarians and animal nutritionists, BLUE Natural Veterinary Diet products are designed to nutritionally help manage certain conditions for dogs and cats. BLUE Natural Veterinary Diet formulas contain the same kind of premium-quality ingredients that are synonymous with Blue Buffalo.

The True BLUE Promise

BLUE is formulated with only the finest natural ingredients:

• Always features protein-rich real meat

• NO chicken (or poultry) by-product meals

• NO corn, wheat or soy

A Holistic Approach to Nutritional Therapy


Because the efficacy of nutritional therapy is top priority, BLUE Buffalo employs a team of PhD animal nutritionists, food scientists and veterinarians to ensure each BLUE Natural Veterinary Diet performs exactly as it should.


At BLUE Buffalo, product safety and quality are our #1 priority. We care deeply about the safety of our furry family members. We are proud of our best-in-class product quality, and have strict controls in place to make sure that our ingredients meet the highest quality standards.


BLUE Natural Veterinary Diet is made with the finest natural ingredients just like all our BLUE foods. It always starts with REAL MEAT and contains NO chicken/poultry by-products, corn, wheat or soy and artificial preservatives, or flavors. It's a wholesome, natural veterinary diet that has both beneficial nutrition and a taste cats love.

Exclusive LifeSource Bits®

All BLUE Natural Veterinary Diet recipes feature a precise blend of vitamins, minerals and antioxidants selected by holistic veterinarians and animal nutritionists to help promote immune system health, fulfill life stage requirements and support a healthy oxidative balance.

About BLUE Buffalo

Blue Buffalo began with unconditional love and some furry inspiration from a large breed Airedale, Blue. When Blue's family started a pet food company, their vision was clear. They wanted every pet parent to be able to feed their pet with the same care they would feed family. So they created the #1 natural pet specialty food to help furry family members live happy, healthy lives. Of course, they named it after Blue.

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Top IngredientsDeboned Chicken, Peas, Pea Starch...Deboned Chicken, Chicken Meal, Tapioca Starch...Ocean Fish, Brewers Rice, Cracked Pearled Barley...Brown Rice, Corn Gluten Meal, Chicken...Deboned Chicken, Chicken Meal, Pea Protein...
Special DietGrain-Free, No Corn No Wheat No Soy, Veterinary DietGrain-Free, No Corn No Wheat No Soy, Veterinary Diet...Pea-Free, Veterinary Diet, With GrainVeterinary Diet, With GrainGrain-Free, No Corn No Wheat No Soy, Veterinary Diet, Weight Control
Food FlavorChicken, PoultryChicken, PoultrySeafood & FishChicken, PoultryChicken, Poultry
Health FeatureHip & Joint Support, Kidney CareDigestive HealthUrinary Tract HealthKidney CareUrinary Tract Health, Weight Management
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

11 Customer Questions

what is the dry matter % of phosphorous?
Answer by ChewyDec 18, 2019
This food has a phosphorus content of 0.7% on an as-fed basis, and 0.769% on a dry matter basis.

Why is the protein limited when it's not the protein that causes the problems in cats with kidney disease, it's the phosphorus and sodium content that needs to be limited?
Answer by ChewyNov 27, 2019
This food is formulated to help support kidney health by restricting key mineral levels, while controlled levels of protein help manage kidney workload.

what are the levels of carbohydrates, calcium, protein, and magnesium on a dry matter basis?
Answer by ChewyJan 09, 2020
This variety contains approximately 39% Carbohydrate content on an as-fed basis (42.8% on a dry matter basis), 0.5-0.9% Calcium content on an as-fed basis (0.54-0.98% on a dry matter basis), 26% Protein content on an as-fed basis (28.5% on a dry matter basis) and 0.12% Magnesium content on an as-fed basis (0.13% on a dry matter basis).

What is the actual protein % ? The minimum is just listed.
Answer by ChewyFeb 23, 2019
The recipes are formulated to target the minimum protein content that is provided in the Guaranteed Analysis, any deviation from this as-fed percentage would be minimal. Please speak with your veterinarian to ensure the value is low enough for your pets specific needs.

ReviewsWrite a Review

Rated 4.6364 out of 5 stars
132 Reviews
Would recommend to a friend

132 Customer Reviews

Rated 5 out of 5 stars
By LoveMyCats on Jun 14, 2022

Fingers Crossed

My vet wants my cat on a kidney sparing diet. She put him on Science Diet's and he wouldn't eat it at all. No more than two pieces of kibble. (I don't blame him - if you read SD ingredients it is horrible stuff - my vet even told me they use chicken feathers for the protein source and she sees nothing wrong with that!) So I tried Royal Canin's - again no success. So, since he is already eating Blue Buffalo Wilderness Salmon, I thought I'd try BB Natural Vet Diet K+M. So far so good - we are at half and half of each and he is still eating this combination. So I am hopeful that we can get him to the full BB K+M.

Rated 1 out of 5 stars
By ourexperiencewithproduct on May 17, 2022

This food seems to be dehydrated, and not good for cats with renal failure

My vet recommended a kidney KM food for my elderly cat that has begun renal failure. I gave my cat this food and my cat's poop became rock hard and he strained to poop. I decided to powder this food and then add water to it for his meal. The food soaked up a LOT of water like dehydrated food. I compared it with other dry food that I powdered. I believe this food is dehydrated and therefore, it is not a good choice for cats with renal failure. Also, after I added the water to it and mixed it, he did not want to eat it and did not like it. I do not recommend Blue Buffalo Natural Veterinary Diet.

Rated 5 out of 5 stars
By Lisa on Apr 24, 2022

After 5 months, Test results prove it works

My 16 year old kitty, Winnie, on Azodyl for early kidney decline, had more recently started drinking more water, was tested at moderate kidney disease so needed to switch to kidney support food. I found this one and got vet office to approve it though they wanted me to use another with corn gluten as the primary ingredient. After 5 months her test number for creatinine went from 3.5 down to 2.9, borderline. She likes this food better than her Wilderness kibble, maintains her weight, etc. The vet is concerned it’s lower protein, with possible muscle wasting, but so far no weight loss at all. Higher quality protein might make the difference. Also the other prescription food was much higher calorie so eating less of it means getting less protein in the end.

Rated 5 out of 5 stars
By LinC on May 24, 2022

Dry prescription food for a CKD cat that is a picky cat

I have tried numerous prescription and non-prescription dry food for my picky eater. She walked away from all of them. As a last attempt, I purchased Blue Buffalo Natural Veterinary Diet K&M. I put a few of her treats in the food for the first time and she started eating it. Happily, she has switched to this healthier food and actually seems to be eating more.

Rated 5 out of 5 stars
By TinyIvy on Apr 12, 2022

She’ll eat it!! Whew.

My cat was diagnosed with advanced kidney disease and given two months to live. Since switching her diet she’s doing fantastic, fours months now! Problem is the prescription diet is not at all appealing to Ivy. We tried all the brands and this Blue Buffalo is the one she’ll eat. It’s nice to have the other brands to switch it up for a day since she really doesn’t love any of them. Moving her bowl to a new place very now and then also helps. Bottom line, this is one I am reordering as she’s gone thru almost the entire bag. And doing better than ever!! Very happy. And thanks to Chewy for great customer support!!

Rated 5 out of 5 stars
By PaulaMc515 on Mar 21, 2022

My cat likes it!

The most important thing about this food is my 16 year old cat eats it! When my vet told me my cat needed a prescription food for her kidney function, I was afraid she wouldn't eat it, as she's very finicky about her food. But she transitioned over with no problem. And a shout out to Chewy - I had been ordering this food from a different pet food store. It was time for a repeat delivery, but they were out stock and I was not notified. Their customer service was of no help, and I had run out of food. I ordered from Chewy on a Saturday and it arrived on Tuesday. Chewy has a new repeat customer!

Rated 5 out of 5 stars
By Sammi on Mar 30, 2022

Very effective

This formulation has really helped our cat with her arthritis and also with her renal disease. She stopped eating other brands and so switched to Blue. She is feeling well now and is moving around freely. We use their wet cat food as well and she likes both. Once in a while if she is picky, I add a small amount of her regular dry cat food to entice her to eat and this is effective.

Rated 5 out of 5 stars
By JST1 on Mar 17, 2022

Yay! She ate it!

No amount of quality or "good for you" cat food does a feline any good unless they will eat it. When my vet discovered some kidney issues on our most senior feline citizen, he suggested getting a kidney diet food. I bought canned and dry -- she is choosing this dry food over everything else! (And I have been cooking for her, so my feelings are a little hurt, LOL) She looks remarkably good at age 17, and I'm happy to have found a food she enjoys and will readily eat.

Rated 5 out of 5 stars
By Sammie on Apr 28, 2022

I Love this Food!

My two cats, Sammie and Andrew both love this food. We previously tried Science KD and Andrew liked it. However, Sammie didn't and started to lose weight. I'm happy because not only is Blue Buffalo less expensive, but it's healthier as well.

Rated 5 out of 5 stars
By merster on Apr 12, 2022

My 14 year old cat loves it!

My cat literally LOVES this food. Whenever I open a bag he comes running and tries to eat straight from the bag. He refuses to eat any other kidney dry food. I’m happy he likes this food without grain because previously he never had grain in his normal dry food either.